112212978 has 32 divisors (see below), whose sum is σ = 230138496. Its totient is φ = 36461568.

The previous prime is 112212959. The next prime is 112212979. The reversal of 112212978 is 879212211.

It is not an unprimeable number, because it can be changed into a prime (112212979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52050 + ... + 54162.

It is an arithmetic number, because the mean of its divisors is an integer number (7191828).

Almost surely, 2^112212978 is an apocalyptic number.

112212978 is an abundant number, since it is smaller than the sum of its proper divisors (117925518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

112212978 is a wasteful number, since it uses less digits than its factorization.

112212978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2338.

The product of its digits is 4032, while the sum is 33.

The square root of 112212978 is about 10593.0627299190. The cubic root of 112212978 is about 482.3337994159. Note that the first 3 decimals are identical.

The spelling of 112212978 in words is "one hundred twelve million, two hundred twelve thousand, nine hundred seventy-eight".