23021223200 has 72 divisors (see below), whose sum is σ = 59506511652. Its totient is φ = 8666808320.

The previous prime is 23021223187. The next prime is 23021223221. The reversal of 23021223200 is 232212032.

It can be written as a sum of positive squares in 6 ways, for example, as 7206651664 + 15814571536 = 84892^2 + 125756^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 832769 + ... + 859968.

Almost surely, 2^23021223200 is an apocalyptic number.

23021223200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23021223200 is an abundant number, since it is smaller than the sum of its proper divisors (36485288452).

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

23021223200 is a wasteful number, since it uses less digits than its factorization.

23021223200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692774 (or 1692761 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 23021223200 its reverse (232212032), we get a palindrome (23253435232).

The spelling of 23021223200 in words is "twenty-three billion, twenty-one million, two hundred twenty-three thousand, two hundred".