12321255226164 has 12 divisors (see below), whose sum is σ = 28749595527744. Its totient is φ = 4107085075384.

The previous prime is 12321255226117. The next prime is 12321255226171. The reversal of 12321255226164 is 46162255212321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 513385634412 + ... + 513385634435.

It is an arithmetic number, because the mean of its divisors is an integer number (2395799627312).

Almost surely, 2^{12321255226164} is an apocalyptic number.

It is an amenable number.

12321255226164 is an abundant number, since it is smaller than the sum of its proper divisors (16428340301580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12321255226164 is a wasteful number, since it uses less digits than its factorization.

12321255226164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026771268854 (or 1026771268852 counting only the distinct ones).

The product of its digits is 345600, while the sum is 42.

The spelling of 12321255226164 in words is "twelve trillion, three hundred twenty-one billion, two hundred fifty-five million, two hundred twenty-six thousand, one hundred sixty-four".