22111011012 has 24 divisors (see below), whose sum is σ = 51625838656. Its totient is φ = 7365554208.

The previous prime is 22111011007. The next prime is 22111011031. The reversal of 22111011012 is 21011011122.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 578563 + ... + 615594.

Almost surely, 2^22111011012 is an apocalyptic number.

It is an amenable number.

22111011012 is an abundant number, since it is smaller than the sum of its proper divisors (29514827644).

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

22111011012 is a wasteful number, since it uses less digits than its factorization.

22111011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195707 (or 1195705 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 22111011012 its reverse (21011011122), we get a palindrome (43122022134).

The spelling of 22111011012 in words is "twenty-two billion, one hundred eleven million, eleven thousand, twelve".