22200212212 has 24 divisors (see below), whose sum is σ = 41214708360. Its totient is φ = 10427089920.

The previous prime is 22200212207. The next prime is 22200212261. The reversal of 22200212212 is 21221200222.

It can be written as a sum of positive squares in 4 ways, for example, as 9077135076 + 13123077136 = 95274^2 + 114556^2 .

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 7 ways as a sum of consecutive naturals, for example, 277887 + ... + 348742.

It is an arithmetic number, because the mean of its divisors is an integer number (1717279515).

Almost surely, 2^22200212212 is an apocalyptic number.

It is an amenable number.

22200212212 is a deficient number, since it is larger than the sum of its proper divisors (19014496148).

22200212212 is a wasteful number, since it uses less digits than its factorization.

22200212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627171 (or 627169 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22200212212 its reverse (21221200222), we get a palindrome (43421412434).

The spelling of 22200212212 in words is "twenty-two billion, two hundred million, two hundred twelve thousand, two hundred twelve".