23221312120 has 16 divisors (see below), whose sum is σ = 52247952360. Its totient is φ = 9288524832.

The previous prime is 23221312069. The next prime is 23221312133. The reversal of 23221312120 is 2121312232.

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, 290266362 + ... + 290266441.

Almost surely, 2^23221312120 is an apocalyptic number.

23221312120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23221312120 is an abundant number, since it is smaller than the sum of its proper divisors (29026640240).

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

23221312120 is a wasteful number, since it uses less digits than its factorization.

23221312120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580532814 (or 580532810 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 23221312120 its reverse (2121312232), we get a palindrome (25342624352).

The spelling of 23221312120 in words is "twenty-three billion, two hundred twenty-one million, three hundred twelve thousand, one hundred twenty".