111012912 has 60 divisors (see below), whose sum is σ = 318276504. Its totient is φ = 36099840.

The previous prime is 111012901. The next prime is 111012929. The reversal of 111012912 is 219210111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3498 + ... + 15305.

Almost surely, 2^111012912 is an apocalyptic number.

111012912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111012912 is an abundant number, since it is smaller than the sum of its proper divisors (207263592).

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

111012912 is a wasteful number, since it uses less digits than its factorization.

111012912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18858 (or 18849 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The square root of 111012912 is about 10536.2665114356. The cubic root of 111012912 is about 480.6081873997.

The spelling of 111012912 in words is "one hundred eleven million, twelve thousand, nine hundred twelve".