22213213020 has 72 divisors (see below), whose sum is σ = 67407500160. Its totient is φ = 5921112960.

The previous prime is 22213212977. The next prime is 22213213037. The reversal of 22213213020 is 2031231222.

22213213020 is a `hidden beast` number, since 22 + 21 + 321 + 302 + 0 = 666.

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 = 22213212984 and 22213213002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 442566 + ... + 490194.

It is an arithmetic number, because the mean of its divisors is an integer number (936215280).

Almost surely, 2^22213213020 is an apocalyptic number.

22213213020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22213213020 is an abundant number, since it is smaller than the sum of its proper divisors (45194287140).

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

22213213020 is a wasteful number, since it uses less digits than its factorization.

22213213020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50235 (or 50230 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22213213020 its reverse (2031231222), we get a palindrome (24244444242).

The spelling of 22213213020 in words is "twenty-two billion, two hundred thirteen million, two hundred thirteen thousand, twenty".