12315222540124 has 48 divisors (see below), whose sum is σ = 25155205125120. Its totient is φ = 5165510258880.

The previous prime is 12315222540079. The next prime is 12315222540149. The reversal of 12315222540124 is 42104522251321.

It is a self number, because there is not a number n which added to its sum of digits gives 12315222540124.

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, 55597062 + ... + 55818130.

It is an arithmetic number, because the mean of its divisors is an integer number (524066773440).

Almost surely, 2^{12315222540124} is an apocalyptic number.

12315222540124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12315222540124 is an abundant number, since it is smaller than the sum of its proper divisors (12839982584996).

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

12315222540124 is a wasteful number, since it uses less digits than its factorization.

12315222540124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263458 (or 263456 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 12315222540124 its reverse (42104522251321), we get a palindrome (54419744791445).

The spelling of 12315222540124 in words is "twelve trillion, three hundred fifteen billion, two hundred twenty-two million, five hundred forty thousand, one hundred twenty-four".