212012112111112 has 32 divisors (see below), whose sum is σ = 403122968441280. Its totient is φ = 104512663837120.

The previous prime is 212012112111109. The next prime is 212012112111143. The reversal of 212012112111112 is 211111211210212.

It is a self number, because there is not a number n which added to its sum of digits gives 212012112111112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283014198 + ... + 283762330.

It is an arithmetic number, because the mean of its divisors is an integer number (12597592763790).

Almost surely, 2^{212012112111112} is an apocalyptic number.

It is an amenable number.

212012112111112 is a deficient number, since it is larger than the sum of its proper divisors (191110856330168).

212012112111112 is a wasteful number, since it uses less digits than its factorization.

212012112111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247133 (or 1247129 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 212012112111112 its reverse (211111211210212), we get a palindrome (423123323321324).

The spelling of 212012112111112 in words is "two hundred twelve trillion, twelve billion, one hundred twelve million, one hundred eleven thousand, one hundred twelve".