10111522212 has 72 divisors (see below), whose sum is σ = 27895707840. Its totient is φ = 3062733120.

The previous prime is 10111522153. The next prime is 10111522241. The reversal of 10111522212 is 21222511101.

10111522212 is a `hidden beast` number, since 10 + 111 + 522 + 21 + 2 = 666.

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 23 ways as a sum of consecutive naturals, for example, 1215138 + ... + 1223430.

Almost surely, 2^10111522212 is an apocalyptic number.

10111522212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10111522212 is an abundant number, since it is smaller than the sum of its proper divisors (17784185628).

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

10111522212 is a wasteful number, since it uses less digits than its factorization.

10111522212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11393 (or 11388 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The spelling of 10111522212 in words is "ten billion, one hundred eleven million, five hundred twenty-two thousand, two hundred twelve".