15010125021 has 24 divisors (see below), whose sum is σ = 21904213760. Its totient is φ = 9904065696.

The previous prime is 15010124971. The next prime is 15010125037. The reversal of 15010125021 is 12052101051.

15010125021 is a `hidden beast` number, since 150 + 1 + 0 + 12 + 502 + 1 = 666.

It is not a de Polignac number, because 15010125021 - 2¹¹ = 15010122973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15010124985 and 15010125003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15010125521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 940716 + ... + 956538.

Almost surely, 2^15010125021 is an apocalyptic number.

It is an amenable number.

15010125021 is a deficient number, since it is larger than the sum of its proper divisors (6894088739).

15010125021 is a wasteful number, since it uses less digits than its factorization.

15010125021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16905 (or 16902 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

Adding to 15010125021 its reverse (12052101051), we get a palindrome (27062226072).

The spelling of 15010125021 in words is "fifteen billion, ten million, one hundred twenty-five thousand, twenty-one".