22221012021112 has 16 divisors (see below), whose sum is σ = 42347420451000. Its totient is φ = 10928366567520.

The previous prime is 22221012021011. The next prime is 22221012021127. The reversal of 22221012021112 is 21112021012222.

It is a super-2 number, since 2×22221012021112² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22221012021112.

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, 22767429862 + ... + 22767430837.

Almost surely, 2^{22221012021112} is an apocalyptic number.

It is an amenable number.

22221012021112 is a deficient number, since it is larger than the sum of its proper divisors (20126408429888).

22221012021112 is a wasteful number, since it uses less digits than its factorization.

22221012021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45534860766 (or 45534860762 counting only the distinct ones).

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

Adding to 22221012021112 its reverse (21112021012222), we get a palindrome (43333033033334).

The spelling of 22221012021112 in words is "twenty-two trillion, two hundred twenty-one billion, twelve million, twenty-one thousand, one hundred twelve".