23220112220 has 12 divisors (see below), whose sum is σ = 48762235704. Its totient is φ = 9288044880.

The previous prime is 23220112169. The next prime is 23220112243. The reversal of 23220112220 is 2221102232.

It is a super-2 number, since 2×23220112220² (a number of 22 digits) contains 22 as substring.

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, 580502786 + ... + 580502825.

It is an arithmetic number, because the mean of its divisors is an integer number (4063519642).

Almost surely, 2^23220112220 is an apocalyptic number.

23220112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23220112220 is an abundant number, since it is smaller than the sum of its proper divisors (25542123484).

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

23220112220 is a wasteful number, since it uses less digits than its factorization.

23220112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161005620 (or 1161005618 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 23220112220 its reverse (2221102232), we get a palindrome (25441214452).

The spelling of 23220112220 in words is "twenty-three billion, two hundred twenty million, one hundred twelve thousand, two hundred twenty".