15225858145212 has 48 divisors (see below), whose sum is σ = 41738016738432. Its totient is φ = 4258981298880.

The previous prime is 15225858145111. The next prime is 15225858145231. The reversal of 15225858145212 is 21254185852251.

It is a happy number.

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, 4436437138 + ... + 4436440569.

It is an arithmetic number, because the mean of its divisors is an integer number (869542015384).

Almost surely, 2^{15225858145212} is an apocalyptic number.

15225858145212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15225858145212 is an abundant number, since it is smaller than the sum of its proper divisors (26512158593220).

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

15225858145212 is a wasteful number, since it uses less digits than its factorization.

15225858145212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8872877738 (or 8872877736 counting only the distinct ones).

The product of its digits is 2560000, while the sum is 51.

The spelling of 15225858145212 in words is "fifteen trillion, two hundred twenty-five billion, eight hundred fifty-eight million, one hundred forty-five thousand, two hundred twelve".