12225279892165 has 32 divisors (see below), whose sum is σ = 15471696936960. Its totient is φ = 9255478123584.

The previous prime is 12225279892051. The next prime is 12225279892207. The reversal of 12225279892165 is 56129897252221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12225279892165 - 2⁷ = 12225279892037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4077372 + ... + 6409018.

It is an arithmetic number, because the mean of its divisors is an integer number (483490529280).

Almost surely, 2^{12225279892165} is an apocalyptic number.

It is an amenable number.

12225279892165 is a deficient number, since it is larger than the sum of its proper divisors (3246417044795).

12225279892165 is a wasteful number, since it uses less digits than its factorization.

12225279892165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332161.

The product of its digits is 21772800, while the sum is 61.

The spelling of 12225279892165 in words is "twelve trillion, two hundred twenty-five billion, two hundred seventy-nine million, eight hundred ninety-two thousand, one hundred sixty-five".