22204204550 has 96 divisors (see below), whose sum is σ = 46886463360. Its totient is φ = 7752326400.

The previous prime is 22204204549. The next prime is 22204204601. The reversal of 22204204550 is 5540240222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1387394 + ... + 1403306.

It is an arithmetic number, because the mean of its divisors is an integer number (488400660).

Almost surely, 2^22204204550 is an apocalyptic number.

22204204550 is an abundant number, since it is smaller than the sum of its proper divisors (24682258810).

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

22204204550 is a wasteful number, since it uses less digits than its factorization.

22204204550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16038 (or 16033 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

Adding to 22204204550 its reverse (5540240222), we get a palindrome (27744444772).

The spelling of 22204204550 in words is "twenty-two billion, two hundred four million, two hundred four thousand, five hundred fifty".