22331424520 has 16 divisors (see below), whose sum is σ = 50245705260. Its totient is φ = 8932569792.

The previous prime is 22331424517. The next prime is 22331424551. The reversal of 22331424520 is 2542413322.

It can be written as a sum of positive squares in 2 ways, for example, as 22044528676 + 286895844 = 148474^2 + 16938^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279142767 + ... + 279142846.

Almost surely, 2^22331424520 is an apocalyptic number.

22331424520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22331424520 is an abundant number, since it is smaller than the sum of its proper divisors (27914280740).

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

22331424520 is a wasteful number, since it uses less digits than its factorization.

22331424520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558285624 (or 558285620 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 22331424520 its reverse (2542413322), we get a palindrome (24873837842).

The spelling of 22331424520 in words is "twenty-two billion, three hundred thirty-one million, four hundred twenty-four thousand, five hundred twenty".