22332021212 has 12 divisors (see below), whose sum is σ = 40780212816. Its totient is φ = 10680531840.

The previous prime is 22332021199. The next prime is 22332021247. The reversal of 22332021212 is 21212023322.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121369589 + ... + 121369772.

It is an arithmetic number, because the mean of its divisors is an integer number (3398351068).

Almost surely, 2^22332021212 is an apocalyptic number.

It is an amenable number.

22332021212 is a deficient number, since it is larger than the sum of its proper divisors (18448191604).

22332021212 is a wasteful number, since it uses less digits than its factorization.

22332021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242739388 (or 242739386 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22332021212 its reverse (21212023322), we get a palindrome (43544044534).

The spelling of 22332021212 in words is "twenty-two billion, three hundred thirty-two million, twenty-one thousand, two hundred twelve".