79121011102 has 32 divisors (see below), whose sum is σ = 140462606592. Its totient is φ = 32721361344.

The previous prime is 79121011097. The next prime is 79121011129. The reversal of 79121011102 is 20111012197.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 741783 + ... + 841714.

It is an arithmetic number, because the mean of its divisors is an integer number (4389456456).

Almost surely, 2^79121011102 is an apocalyptic number.

79121011102 is a deficient number, since it is larger than the sum of its proper divisors (61341595490).

79121011102 is a wasteful number, since it uses less digits than its factorization.

79121011102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583632.

The product of its (nonzero) digits is 252, while the sum is 25.

Adding to 79121011102 its reverse (20111012197), we get a palindrome (99232023299).

The spelling of 79121011102 in words is "seventy-nine billion, one hundred twenty-one million, eleven thousand, one hundred two".