22112120212 has 36 divisors (see below), whose sum is σ = 47887797216. Its totient is φ = 8747650080.

The previous prime is 22112120209. The next prime is 22112120249. The reversal of 22112120212 is 21202121122.

It is a happy number.

It is a congruent number.

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, 2331714 + ... + 2341177.

Almost surely, 2^22112120212 is an apocalyptic number.

It is an amenable number.

22112120212 is an abundant number, since it is smaller than the sum of its proper divisors (25775677004).

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

22112120212 is a wasteful number, since it uses less digits than its factorization.

22112120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4672928 (or 4672913 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22112120212 its reverse (21202121122), we get a palindrome (43314241334).

The spelling of 22112120212 in words is "twenty-two billion, one hundred twelve million, one hundred twenty thousand, two hundred twelve".