112 is the natural number following 111 and preceding 113.

Cardinal	one hundred [and] twelve
Ordinal	112th
Factorization
Divisors	2, 4, 7, 8, 14, 16, 28, 56
Roman numeral	CXII
Binary	1110000
Hexadecimal	70

One hundred twelve is an abundant number, a heptagonal number and a Harshad number. It is also the sum of six consecutive primes (11 + 13 + 17 + 19 + 23 + 29).

One hundred twelve is also:

• The atomic number of an element temporarily called ununbium.
• In some parts of the world 1 1 2 is the emergency telephone number for calling the emergency services.
• The number of pounds in a British long hundredweight
• The name of a contemporary R&B musical ensemble (see 112 (band)).
• The number of surat al-Ikhlas in the Qur'an.
• The year AD 112 or 112 BC.