22222020112 has 20 divisors (see below), whose sum is σ = 43080234876. Its totient is φ = 11104540160.

The previous prime is 22222020083. The next prime is 22222020113. The reversal of 22222020112 is 21102022222.

It can be written as a sum of positive squares in 2 ways, for example, as 9607136256 + 12614883856 = 98016^2 + 112316^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (22222020113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375973 + ... + 431044.

Almost surely, 2^22222020112 is an apocalyptic number.

It is an amenable number.

22222020112 is a deficient number, since it is larger than the sum of its proper divisors (20858214764).

22222020112 is a wasteful number, since it uses less digits than its factorization.

22222020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808746 (or 808740 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22222020112 its reverse (21102022222), we get a palindrome (43324042334).

The spelling of 22222020112 in words is "twenty-two billion, two hundred twenty-two million, twenty thousand, one hundred twelve".