22212232320 has 64 divisors (see below), whose sum is σ = 70801496640. Its totient is φ = 5923261440.

The previous prime is 22212232307. The next prime is 22212232333. The reversal of 22212232320 is 2323221222.

It is an interprime number because it is at equal distance from previous prime (22212232307) and next prime (22212232333).

It is a tau number, because it is divible by the number of its divisors (64).

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, 5782516 + ... + 5786355.

It is an arithmetic number, because the mean of its divisors is an integer number (1106273385).

Almost surely, 2^22212232320 is an apocalyptic number.

22212232320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22212232320 is an abundant number, since it is smaller than the sum of its proper divisors (48589264320).

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

22212232320 is a wasteful number, since it uses less digits than its factorization.

22212232320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11568893 (or 11568881 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 22212232320 its reverse (2323221222), we get a palindrome (24535453542).

The spelling of 22212232320 in words is "twenty-two billion, two hundred twelve million, two hundred thirty-two thousand, three hundred twenty".