22153321224 has 24 divisors (see below), whose sum is σ = 59998578510. Its totient is φ = 7384440384.

The previous prime is 22153321213. The next prime is 22153321243. The reversal of 22153321224 is 42212335122.

22153321224 is a `hidden beast` number, since 2 + 2 + 1 + 533 + 2 + 122 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12049452900 + 10103868324 = 109770^2 + 100518^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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, 153842437 + ... + 153842580.

Almost surely, 2^22153321224 is an apocalyptic number.

22153321224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22153321224 is an abundant number, since it is smaller than the sum of its proper divisors (37845257286).

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

22153321224 is a wasteful number, since it uses less digits than its factorization.

22153321224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307685029 (or 307685022 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

Adding to 22153321224 its reverse (42212335122), we get a palindrome (64365656346).

The spelling of 22153321224 in words is "twenty-two billion, one hundred fifty-three million, three hundred twenty-one thousand, two hundred twenty-four".