22022212112012 has 12 divisors (see below), whose sum is σ = 44044424224080. Its totient is φ = 9438090905136.

The previous prime is 22022212112009. The next prime is 22022212112041. The reversal of 22022212112012 is 21021121222022.

22022212112012 is an admirable 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, 393253787687 + ... + 393253787742.

It is an arithmetic number, because the mean of its divisors is an integer number (3670368685340).

Almost surely, 2^{22022212112012} is an apocalyptic number.

It is an amenable number.

22022212112012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22022212112012 is a wasteful number, since it uses less digits than its factorization.

22022212112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786507575440 (or 786507575438 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22022212112012 its reverse (21021121222022), we get a palindrome (43043333334034).

The spelling of 22022212112012 in words is "twenty-two trillion, twenty-two billion, two hundred twelve million, one hundred twelve thousand, twelve".