22233355212 has 12 divisors (see below), whose sum is σ = 51877828856. Its totient is φ = 7411118400.

The previous prime is 22233355181. The next prime is 22233355219. The reversal of 22233355212 is 21255333222.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22233355212.

It is not an unprimeable number, because it can be changed into a prime (22233355219) 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 3 ways as a sum of consecutive naturals, for example, 926389789 + ... + 926389812.

Almost surely, 2^22233355212 is an apocalyptic number.

It is an amenable number.

22233355212 is an abundant number, since it is smaller than the sum of its proper divisors (29644473644).

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

22233355212 is a wasteful number, since it uses less digits than its factorization.

22233355212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852779608 (or 1852779606 counting only the distinct ones).

The product of its digits is 21600, while the sum is 30.

Adding to 22233355212 its reverse (21255333222), we get a palindrome (43488688434).

The spelling of 22233355212 in words is "twenty-two billion, two hundred thirty-three million, three hundred fifty-five thousand, two hundred twelve".