79121001100012 has 12 divisors (see below), whose sum is σ = 139311210526936. Its totient is φ = 39317798092320.

The previous prime is 79121001100007. The next prime is 79121001100051. The reversal of 79121001100012 is 21000110012197.

It is a super-2 number, since 2×79121001100012² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79121001100012.

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, 60675613689 + ... + 60675614992.

Almost surely, 2^{79121001100012} is an apocalyptic number.

It is an amenable number.

79121001100012 is a deficient number, since it is larger than the sum of its proper divisors (60190209426924).

79121001100012 is a wasteful number, since it uses less digits than its factorization.

79121001100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121351228848 (or 121351228846 counting only the distinct ones).

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

The spelling of 79121001100012 in words is "seventy-nine trillion, one hundred twenty-one billion, one million, one hundred thousand, twelve".