111019252212 has 120 divisors (see below), whose sum is σ = 317995376160. Its totient is φ = 33495042240.

The previous prime is 111019252193. The next prime is 111019252249. The reversal of 111019252212 is 212252910111.

111019252212 is a `hidden beast` number, since 1 + 110 + 19 + 2 + 522 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 748143 + ... + 884169.

It is an arithmetic number, because the mean of its divisors is an integer number (2649961468).

Almost surely, 2^111019252212 is an apocalyptic number.

111019252212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111019252212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158997688080).

111019252212 is an abundant number, since it is smaller than the sum of its proper divisors (206976123948).

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

111019252212 is a wasteful number, since it uses less digits than its factorization.

111019252212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136283 (or 136272 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The spelling of 111019252212 in words is "one hundred eleven billion, nineteen million, two hundred fifty-two thousand, two hundred twelve".