111010111112 has 32 divisors (see below), whose sum is σ = 220453666200. Its totient is φ = 52224420864.

The previous prime is 111010111099. The next prime is 111010111141. The reversal of 111010111112 is 211111010111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 104881413316 + 6128697796 = 323854^2 + 78286^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111010111093 and 111010111102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340478 + ... + 581330.

Almost surely, 2^111010111112 is an apocalyptic number.

It is an amenable number.

111010111112 is a deficient number, since it is larger than the sum of its proper divisors (109443555088).

111010111112 is a wasteful number, since it uses less digits than its factorization.

111010111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244265 (or 244261 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 111010111112 its reverse (211111010111), we get a palindrome (322121121223).

The spelling of 111010111112 in words is "one hundred eleven billion, ten million, one hundred eleven thousand, one hundred twelve".