23022304220 has 24 divisors (see below), whose sum is σ = 49375497024. Its totient is φ = 9012986816.

The previous prime is 23022304183. The next prime is 23022304289. The reversal of 23022304220 is 2240322032.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23022304192 and 23022304201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12244967 + ... + 12246846.

It is an arithmetic number, because the mean of its divisors is an integer number (2057312376).

Almost surely, 2^23022304220 is an apocalyptic number.

23022304220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23022304220 is an abundant number, since it is smaller than the sum of its proper divisors (26353192804).

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

23022304220 is a wasteful number, since it uses less digits than its factorization.

23022304220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24491869 (or 24491867 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 23022304220 its reverse (2240322032), we get a palindrome (25262626252).

The spelling of 23022304220 in words is "twenty-three billion, twenty-two million, three hundred four thousand, two hundred twenty".