111112111112012 has 12 divisors (see below), whose sum is σ = 194446327615176. Its totient is φ = 55556017507680.

The previous prime is 111112111111997. The next prime is 111112111112029. The reversal of 111112111112012 is 210211111211111.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2340689 + ... + 15089832.

It is an arithmetic number, because the mean of its divisors is an integer number (16203860634598).

Almost surely, 2^{111112111112012} is an apocalyptic number.

It is an amenable number.

111112111112012 is a deficient number, since it is larger than the sum of its proper divisors (83334216503164).

111112111112012 is a wasteful number, since it uses less digits than its factorization.

111112111112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19024168 (or 19024166 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 17.

Adding to 111112111112012 its reverse (210211111211111), we get a palindrome (321323222323123).

Subtracting 111112111112012 from its reverse (210211111211111), we obtain a palindrome (99099000099099).

The spelling of 111112111112012 in words is "one hundred eleven trillion, one hundred twelve billion, one hundred eleven million, one hundred twelve thousand, twelve".