15204144222 has 12 divisors (see below), whose sum is σ = 32942312520. Its totient is φ = 5068048068.

The previous prime is 15204144211. The next prime is 15204144239. The reversal of 15204144222 is 22244140251.

It is a happy number.

15204144222 is a `hidden beast` number, since 1 + 5 + 20 + 414 + 4 + 222 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 422337322 + ... + 422337357.

It is an arithmetic number, because the mean of its divisors is an integer number (2745192710).

Almost surely, 2^15204144222 is an apocalyptic number.

15204144222 is an abundant number, since it is smaller than the sum of its proper divisors (17738168298).

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

15204144222 is a wasteful number, since it uses less digits than its factorization.

15204144222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844674687 (or 844674684 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 15204144222 its reverse (22244140251), we get a palindrome (37448284473).

The spelling of 15204144222 in words is "fifteen billion, two hundred four million, one hundred forty-four thousand, two hundred twenty-two".