22304420121 has 32 divisors (see below), whose sum is σ = 32201971200. Its totient is φ = 13680538880.

The previous prime is 22304420077. The next prime is 22304420123. The reversal of 22304420121 is 12102440322.

It is a cyclic number.

It is not a de Polignac number, because 22304420121 - 2⁹ = 22304419609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22304420123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 517906 + ... + 559316.

It is an arithmetic number, because the mean of its divisors is an integer number (1006311600).

Almost surely, 2^22304420121 is an apocalyptic number.

It is an amenable number.

22304420121 is a deficient number, since it is larger than the sum of its proper divisors (9897551079).

22304420121 is a wasteful number, since it uses less digits than its factorization.

22304420121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41669.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22304420121 its reverse (12102440322), we get a palindrome (34406860443).

The spelling of 22304420121 in words is "twenty-two billion, three hundred four million, four hundred twenty thousand, one hundred twenty-one".