22200022212 has 24 divisors (see below), whose sum is σ = 51824171616. Its totient is φ = 7396561728.

The previous prime is 22200022193. The next prime is 22200022213. The reversal of 22200022212 is 21222000222.

It is a junction number, because it is equal to n+sod(n) for n = 22200022191 and 22200022200.

It is not an unprimeable number, because it can be changed into a prime (22200022213) 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 7 ways as a sum of consecutive naturals, for example, 403798 + ... + 455469.

It is an arithmetic number, because the mean of its divisors is an integer number (2159340484).

Almost surely, 2^22200022212 is an apocalyptic number.

It is an amenable number.

22200022212 is an abundant number, since it is smaller than the sum of its proper divisors (29624149404).

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

22200022212 is a wasteful number, since it uses less digits than its factorization.

22200022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861427 (or 861425 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 22200022212 its reverse (21222000222), we get a palindrome (43422022434).

The spelling of 22200022212 in words is "twenty-two billion, two hundred million, twenty-two thousand, two hundred twelve".