979910111212 has 12 divisors (see below), whose sum is σ = 1789401072816. Its totient is φ = 468652661840.

The previous prime is 979910111207. The next prime is 979910111221. The reversal of 979910111212 is 212111019979.

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, 5325598339 + ... + 5325598522.

It is an arithmetic number, because the mean of its divisors is an integer number (149116756068).

Almost surely, 2^979910111212 is an apocalyptic number.

979910111212 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

979910111212 is a deficient number, since it is larger than the sum of its proper divisors (809490961604).

979910111212 is a wasteful number, since it uses less digits than its factorization.

979910111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10651196888 (or 10651196886 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 43.

The spelling of 979910111212 in words is "nine hundred seventy-nine billion, nine hundred ten million, one hundred eleven thousand, two hundred twelve".