22200023212 has 12 divisors (see below), whose sum is σ = 38854261600. Its totient is φ = 11098805616.

The previous prime is 22200023203. The next prime is 22200023213. The reversal of 22200023212 is 21232000222.

It is a super-2 number, since 2×22200023212² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22200023213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259428 + ... + 334219.

Almost surely, 2^22200023212 is an apocalyptic number.

It is an amenable number.

22200023212 is a deficient number, since it is larger than the sum of its proper divisors (16654238388).

22200023212 is a wasteful number, since it uses less digits than its factorization.

22200023212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603000 (or 602998 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 22200023212 its reverse (21232000222), we get a palindrome (43432023434).

The spelling of 22200023212 in words is "twenty-two billion, two hundred million, twenty-three thousand, two hundred twelve".