22112011220212 has 12 divisors (see below), whose sum is σ = 38787934174276. Its totient is φ = 11029744313280.

The previous prime is 22112011220087. The next prime is 22112011220291. The reversal of 22112011220212 is 21202211021122.

It can be written as a sum of positive squares in 2 ways, for example, as 388246132836 + 21723765087376 = 623094^2 + 4660876^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22112011220212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6565322313 + ... + 6565325680.

Almost surely, 2^{22112011220212} is an apocalyptic number.

It is an amenable number.

22112011220212 is a deficient number, since it is larger than the sum of its proper divisors (16675922954064).

22112011220212 is a wasteful number, since it uses less digits than its factorization.

22112011220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13130648418 (or 13130648416 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22112011220212 its reverse (21202211021122), we get a palindrome (43314222241334).

The spelling of 22112011220212 in words is "twenty-two trillion, one hundred twelve billion, eleven million, two hundred twenty thousand, two hundred twelve".