122 is the natural number following 121 and preceding 123.

Cardinal	One hundred [and] twenty-two
Ordinal	122nd
Factorization
Roman numeral	CXXII
Binary	1111010
Hexadecimal	7A

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.

One hundred twenty-two is also:

• The number of men of Michmas at the Census (Holy Bible, Nehemiah 7:31).
• The year AD 122 or 122 BC.
• The oldest age any woman is known to have lived to (she was born in 1875 and died in 1997).