15216505122 has 32 divisors (see below), whose sum is σ = 37456013952. Its totient is φ = 4013144064.

The previous prime is 15216505097. The next prime is 15216505169. The reversal of 15216505122 is 22150561251.

15216505122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 15216505122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13933983 + ... + 13935074.

It is an arithmetic number, because the mean of its divisors is an integer number (1170500436).

Almost surely, 2^15216505122 is an apocalyptic number.

15216505122 is an abundant number, since it is smaller than the sum of its proper divisors (22239508830).

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

15216505122 is a wasteful number, since it uses less digits than its factorization.

15216505122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27869082.

The product of its (nonzero) digits is 6000, while the sum is 30.

The spelling of 15216505122 in words is "fifteen billion, two hundred sixteen million, five hundred five thousand, one hundred twenty-two".