1,122
1,122 is a composite number, even, a calendar year.
Historical context — 1122 AD
Calendar year
Year 1122 (MCXXII) was a common year starting on Sunday of the Julian calendar.
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Year facts
- Year type
-
Common year
Standard 365-day year; not divisible by 4 (or divisible by 100 but not 400).
- Days in year
- 365
- ISO weeks
- 52
- Started on
-
Sunday
January 1, 1122
- Ended on
-
Sunday
December 31, 1122
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Decade
-
1120s
1120–1129
- Century
-
12th century
1101–1200
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
904
904 years before 2026.
In other calendars
- Hebrew
-
4882 / 4883 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
515 / 516 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Water zodiac:Tiger
Sexagenary cycle position 39 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
1665 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
500 / 501 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1114 / 1115 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1044 / 1043 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 2 × 3 × 11 × 17
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand one hundred twenty-two
- Ordinal
- 1122nd
- Roman numeral
- MCXXII
- Binary
- 10001100010
- Octal
- 2142
- Hexadecimal
- 0x462
- Base64
- BGI=
- One's complement
- 64,413 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵αρκβʹ
- Mayan (base 20)
- 𝋢·𝋰·𝋢
- Chinese
- 一千一百二十二
- Chinese (financial)
- 壹仟壹佰貳拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,122 = 5
- e — Euler's number (e)
- Digit 1,122 = 4
- φ — Golden ratio (φ)
- Digit 1,122 = 8
- √2 — Pythagoras's (√2)
- Digit 1,122 = 5
- ln 2 — Natural log of 2
- Digit 1,122 = 6
- γ — Euler-Mascheroni (γ)
- Digit 1,122 = 4
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1122, here are decompositions:
- 5 + 1117 = 1122
- 13 + 1109 = 1122
- 19 + 1103 = 1122
- 29 + 1093 = 1122
- 31 + 1091 = 1122
- 53 + 1069 = 1122
- 59 + 1063 = 1122
- 61 + 1061 = 1122
Showing the first eight; more decompositions exist.
UTF-8 encoding: D1 A2 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.4.98.
- Address
- 0.0.4.98
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.4.98
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.
Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.
The digit sequence 1122 first appears in π at position 12,017 of the decimal expansion (the 12,017ordinal-suffix:th digit after the integer 3).
Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.