15122551401222 has 16 divisors (see below), whose sum is σ = 30264503143680. Its totient is φ = 5037617076872.

The previous prime is 15122551401173. The next prime is 15122551401247. The reversal of 15122551401222 is 22210415522151.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 808337418 + ... + 808356125.

It is an arithmetic number, because the mean of its divisors is an integer number (1891531446480).

Almost surely, 2^{15122551401222} is an apocalyptic number.

15122551401222 is an abundant number, since it is smaller than the sum of its proper divisors (15141951742458).

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

15122551401222 is a wasteful number, since it uses less digits than its factorization.

15122551401222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616695107.

The product of its (nonzero) digits is 16000, while the sum is 33.

Adding to 15122551401222 its reverse (22210415522151), we get a palindrome (37332966923373).

The spelling of 15122551401222 in words is "fifteen trillion, one hundred twenty-two billion, five hundred fifty-one million, four hundred one thousand, two hundred twenty-two".