22221331332 has 12 divisors (see below), whose sum is σ = 51849773136. Its totient is φ = 7407110440.

The previous prime is 22221331313. The next prime is 22221331337. The reversal of 22221331332 is 23313312222.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (22221331337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 925888794 + ... + 925888817.

It is an arithmetic number, because the mean of its divisors is an integer number (4320814428).

Almost surely, 2^22221331332 is an apocalyptic number.

It is an amenable number.

22221331332 is an abundant number, since it is smaller than the sum of its proper divisors (29628441804).

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

22221331332 is a wasteful number, since it uses less digits than its factorization.

22221331332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851777618 (or 1851777616 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

Adding to 22221331332 its reverse (23313312222), we get a palindrome (45534643554).

The spelling of 22221331332 in words is "twenty-two billion, two hundred twenty-one million, three hundred thirty-one thousand, three hundred thirty-two".