22200111212 has 12 divisors (see below), whose sum is σ = 38862248880. Its totient is φ = 11096611536.

The previous prime is 22200111211. The next prime is 22200111217. The reversal of 22200111212 is 21211100222.

It is not an unprimeable number, because it can be changed into a prime (22200111211) 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, 846488 + ... + 872319.

It is an arithmetic number, because the mean of its divisors is an integer number (3238520740).

Almost surely, 2^22200111212 is an apocalyptic number.

It is an amenable number.

22200111212 is a deficient number, since it is larger than the sum of its proper divisors (16662137668).

22200111212 is a wasteful number, since it uses less digits than its factorization.

22200111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722040 (or 1722038 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22200111212 its reverse (21211100222), we get a palindrome (43411211434).

The spelling of 22200111212 in words is "twenty-two billion, two hundred million, one hundred eleven thousand, two hundred twelve".