122 (number)

← 121 122 123 →
← 120 121 122 123 124 125 126 127 128 129 → List of numbers — Integers ← 0 100 200 300 400 500 600 700 800 900 →
Cardinal	one hundred twenty-two
Ordinal	122nd (one hundred and twenty-second)
Factorization	2 × 61
Divisors	1, 2, 61, 122
Roman numeral	CXXII
Binary	11110102
Ternary	111123
Quaternary	13224
Quinary	4425
Senary	3226
Octal	1728
Duodecimal	A212
Hexadecimal	7A16
Vigesimal	6220
Base 36	3E36

122 (one hundred [and] twenty-two) is the natural number following 121 and preceding 123.

In mathematics

It is a nontotient since there is no integer with exactly 122 coprimes below it. Nor is there an integer with exactly 122 integers with common factors below it, making 122 a noncototient.

In telephony

• The fire emergency telephone number in Austria^[1]
• The police emergency telephone number in Egypt
• The traffic emergency telephone number in China
• The police emergency telephone number in Bosnia and Herzegovina

In other fields

122 is also:

• The atomic number of the chemical element unbibium
• The number of men of Michmas at the census (Bible, Nehemiah 7:31)
• The Enroute Flight Advisory Service (EFAS) "Flight watch" frequency: 122.0 MHz

See also

• List of highways numbered 122
• United Nations Security Council Resolution 122

References

1. Porter, Darwin; Danforth Prince (2009). Frommer's Austria. Hoboken, New Jersey: Frommer's. p. 482. ISBN 978-0-470-39897-5.