22133203212 has 48 divisors (see below), whose sum is σ = 52109971200. Its totient is φ = 7311415488.

The previous prime is 22133203181. The next prime is 22133203219. The reversal of 22133203212 is 21230233122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22133203219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 778113 + ... + 806055.

It is an arithmetic number, because the mean of its divisors is an integer number (1085624400).

Almost surely, 2^22133203212 is an apocalyptic number.

It is an amenable number.

22133203212 is an abundant number, since it is smaller than the sum of its proper divisors (29976767988).

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

22133203212 is a wasteful number, since it uses less digits than its factorization.

22133203212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28542 (or 28540 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22133203212 its reverse (21230233122), we get a palindrome (43363436334).

The spelling of 22133203212 in words is "twenty-two billion, one hundred thirty-three million, two hundred three thousand, two hundred twelve".