23200232220 has 120 divisors (see below), whose sum is σ = 79396411248. Its totient is φ = 5624294400.

The previous prime is 23200232173. The next prime is 23200232249. The reversal of 23200232220 is 2223200232.

23200232220 is a `hidden beast` number, since 2 + 320 + 0 + 2 + 322 + 20 = 666.

It is a super-2 number, since 2×23200232220² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23200232193 and 23200232202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 633141 + ... + 668780.

Almost surely, 2^23200232220 is an apocalyptic number.

23200232220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23200232220 is an abundant number, since it is smaller than the sum of its proper divisors (56196179028).

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

23200232220 is a wasteful number, since it uses less digits than its factorization.

23200232220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301953 (or 1301942 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 23200232220 its reverse (2223200232), we get a palindrome (25423432452).

The spelling of 23200232220 in words is "twenty-three billion, two hundred million, two hundred thirty-two thousand, two hundred twenty".