22212121332 has 24 divisors (see below), whose sum is σ = 51994942272. Its totient is φ = 7380232000.

The previous prime is 22212121313. The next prime is 22212121363. The reversal of 22212121332 is 23312121222.

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

It is a junction number, because it is equal to n+sod(n) for n = 22212121299 and 22212121308.

It is a congruent number.

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, 2972169 + ... + 2979632.

It is an arithmetic number, because the mean of its divisors is an integer number (2166455928).

Almost surely, 2^22212121332 is an apocalyptic number.

It is an amenable number.

22212121332 is an abundant number, since it is smaller than the sum of its proper divisors (29782820940).

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

22212121332 is a wasteful number, since it uses less digits than its factorization.

22212121332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5952119 (or 5952117 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

Adding to 22212121332 its reverse (23312121222), we get a palindrome (45524242554).

The spelling of 22212121332 in words is "twenty-two billion, two hundred twelve million, one hundred twenty-one thousand, three hundred thirty-two".