22332202221 has 24 divisors (see below), whose sum is σ = 35573864160. Its totient is φ = 12416356512.

The previous prime is 22332202183. The next prime is 22332202247. The reversal of 22332202221 is 12220223322.

It is not a de Polignac number, because 22332202221 - 2⁶ = 22332202157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22332204221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2047531 + ... + 2058408.

It is an arithmetic number, because the mean of its divisors is an integer number (1482244340).

Almost surely, 2^22332202221 is an apocalyptic number.

22332202221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22332202221 is a deficient number, since it is larger than the sum of its proper divisors (13241661939).

22332202221 is a wasteful number, since it uses less digits than its factorization.

22332202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4105993 (or 4105986 counting only the distinct ones).

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

Adding to 22332202221 its reverse (12220223322), we get a palindrome (34552425543).

The spelling of 22332202221 in words is "twenty-two billion, three hundred thirty-two million, two hundred two thousand, two hundred twenty-one".