111211210112012 has 24 divisors (see below), whose sum is σ = 195909629321952. Its totient is φ = 55237034592000.

The previous prime is 111211210111951. The next prime is 111211210112047. The reversal of 111211210112012 is 210211012112111.

111211210112012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 129427562 + ... + 130283982.

It is an arithmetic number, because the mean of its divisors is an integer number (8162901221748).

Almost surely, 2^{111211210112012} is an apocalyptic number.

It is an amenable number.

111211210112012 is a deficient number, since it is larger than the sum of its proper divisors (84698419209940).

111211210112012 is a wasteful number, since it uses less digits than its factorization.

111211210112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071569 (or 1071567 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111211210112012 its reverse (210211012112111), we get a palindrome (321422222224123).

The spelling of 111211210112012 in words is "one hundred eleven trillion, two hundred eleven billion, two hundred ten million, one hundred twelve thousand, twelve".