22221304304 has 20 divisors (see below), whose sum is σ = 44217393864. Its totient is φ = 10810363968.

The previous prime is 22221304279. The next prime is 22221304321. The reversal of 22221304304 is 40340312222.

It is a self number, because there is not a number n which added to its sum of digits gives 22221304304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18767402 + ... + 18768585.

Almost surely, 2^22221304304 is an apocalyptic number.

It is an amenable number.

22221304304 is a deficient number, since it is larger than the sum of its proper divisors (21996089560).

22221304304 is a wasteful number, since it uses less digits than its factorization.

22221304304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37536032 (or 37536026 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 22221304304 its reverse (40340312222), we get a palindrome (62561616526).

The spelling of 22221304304 in words is "twenty-two billion, two hundred twenty-one million, three hundred four thousand, three hundred four".