22212020012200 has 48 divisors (see below), whose sum is σ = 51645038685660. Its totient is φ = 8884448064000.

The previous prime is 22212020012057. The next prime is 22212020012227. The reversal of 22212020012200 is 221002021222.

It can be written as a sum of positive squares in 6 ways, for example, as 9074686306084 + 13137333706116 = 3012422^2 + 3624546^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2726980 + ... + 7201420.

Almost surely, 2^{22212020012200} is an apocalyptic number.

22212020012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22212020012200 is an abundant number, since it is smaller than the sum of its proper divisors (29433018673460).

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

22212020012200 is a wasteful number, since it uses less digits than its factorization.

22212020012200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4499278 (or 4499269 counting only the distinct ones).

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

Adding to 22212020012200 its reverse (221002021222), we get a palindrome (22433022033422).

The spelling of 22212020012200 in words is "twenty-two trillion, two hundred twelve billion, twenty million, twelve thousand, two hundred".