23220441220 has 24 divisors (see below), whose sum is σ = 49010462424. Its totient is φ = 9241026816.

The previous prime is 23220441217. The next prime is 23220441229. The reversal of 23220441220 is 2214402232.

It can be written as a sum of positive squares in 4 ways, for example, as 13217641024 + 10002800196 = 114968^2 + 100014^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23220441191 and 23220441200.

It is not an unprimeable number, because it can be changed into a prime (23220441229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2942817 + ... + 2950696.

It is an arithmetic number, because the mean of its divisors is an integer number (2042102601).

Almost surely, 2^23220441220 is an apocalyptic number.

23220441220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23220441220 is an abundant number, since it is smaller than the sum of its proper divisors (25790021204).

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

23220441220 is a wasteful number, since it uses less digits than its factorization.

23220441220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5893719 (or 5893717 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 23220441220 its reverse (2214402232), we get a palindrome (25434843452).

The spelling of 23220441220 in words is "twenty-three billion, two hundred twenty million, four hundred forty-one thousand, two hundred twenty".