22012210332 has 36 divisors (see below), whose sum is σ = 63590830576. Its totient is φ = 6289202880.

The previous prime is 22012210313. The next prime is 22012210333. The reversal of 22012210332 is 23301221022.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012210333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43674769 + ... + 43675272.

Almost surely, 2^22012210332 is an apocalyptic number.

It is an amenable number.

22012210332 is an abundant number, since it is smaller than the sum of its proper divisors (41578620244).

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

22012210332 is a wasteful number, since it uses less digits than its factorization.

22012210332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87350058 (or 87350053 counting only the distinct ones).

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

Adding to 22012210332 its reverse (23301221022), we get a palindrome (45313431354).

The spelling of 22012210332 in words is "twenty-two billion, twelve million, two hundred ten thousand, three hundred thirty-two".