22231333212 has 48 divisors (see below), whose sum is σ = 56649556992. Its totient is φ = 6729540480.

The previous prime is 22231333153. The next prime is 22231333219. The reversal of 22231333212 is 21233313222.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22231333219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33813 + ... + 213555.

It is an arithmetic number, because the mean of its divisors is an integer number (1180199104).

Almost surely, 2^22231333212 is an apocalyptic number.

22231333212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22231333212 is an abundant number, since it is smaller than the sum of its proper divisors (34418223780).

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

22231333212 is a wasteful number, since it uses less digits than its factorization.

22231333212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180698 (or 180696 counting only the distinct ones).

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

Adding to 22231333212 its reverse (21233313222), we get a palindrome (43464646434).

The spelling of 22231333212 in words is "twenty-two billion, two hundred thirty-one million, three hundred thirty-three thousand, two hundred twelve".