111012111112 has 24 divisors (see below), whose sum is σ = 242131008510. Its totient is φ = 47576618880.

The previous prime is 111012111103. The next prime is 111012111137. The reversal of 111012111112 is 211111210111.

It can be written as a sum of positive squares in only one way, i.e., 104325124036 + 6686987076 = 322994^2 + 81774^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111012111092 and 111012111101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 141596689 + ... + 141597472.

Almost surely, 2^111012111112 is an apocalyptic number.

It is an amenable number.

111012111112 is an abundant number, since it is smaller than the sum of its proper divisors (131118897398).

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

111012111112 is a wasteful number, since it uses less digits than its factorization.

111012111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283194181 (or 283194170 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111012111112 its reverse (211111210111), we get a palindrome (322123321223).

The spelling of 111012111112 in words is "one hundred eleven billion, twelve million, one hundred eleven thousand, one hundred twelve".