15212071204 has 48 divisors (see below), whose sum is σ = 29499313536. Its totient is φ = 6805836800.

The previous prime is 15212071181. The next prime is 15212071229. The reversal of 15212071204 is 40217021251.

It is a super-2 number, since 2×15212071204² (a number of 21 digits) contains 22 as substring.

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, 2036244 + ... + 2043700.

It is an arithmetic number, because the mean of its divisors is an integer number (614569032).

Almost surely, 2^15212071204 is an apocalyptic number.

It is an amenable number.

15212071204 is a deficient number, since it is larger than the sum of its proper divisors (14287242332).

15212071204 is a wasteful number, since it uses less digits than its factorization.

15212071204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8196 (or 8194 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

Adding to 15212071204 its reverse (40217021251), we get a palindrome (55429092455).

The spelling of 15212071204 in words is "fifteen billion, two hundred twelve million, seventy-one thousand, two hundred four".