15422125212 has 72 divisors (see below), whose sum is σ = 44452030896. Its totient is φ = 4466133504.

The previous prime is 15422125189. The next prime is 15422125237. The reversal of 15422125212 is 21252122451.

15422125212 is a `hidden beast` number, since 1 + 5 + 422 + 1 + 25 + 212 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 961258 + ... + 977169.

It is an arithmetic number, because the mean of its divisors is an integer number (617389318).

Almost surely, 2^15422125212 is an apocalyptic number.

15422125212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15422125212 is an abundant number, since it is smaller than the sum of its proper divisors (29029905684).

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

15422125212 is a wasteful number, since it uses less digits than its factorization.

15422125212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938467 (or 1938462 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

Adding to 15422125212 its reverse (21252122451), we get a palindrome (36674247663).

The spelling of 15422125212 in words is "fifteen billion, four hundred twenty-two million, one hundred twenty-five thousand, two hundred twelve".