22211220112 has 20 divisors (see below), whose sum is σ = 43104005676. Its totient is φ = 11087605760.

The previous prime is 22211220071. The next prime is 22211220113. The reversal of 22211220112 is 21102211222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3566956176 + 18644263936 = 59724^2 + 136544^2 .

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 (22211220113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1115089 + ... + 1134832.

Almost surely, 2^22211220112 is an apocalyptic number.

It is an amenable number.

22211220112 is a deficient number, since it is larger than the sum of its proper divisors (20892785564).

22211220112 is a wasteful number, since it uses less digits than its factorization.

22211220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250546 (or 2250540 counting only the distinct ones).

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

Adding to 22211220112 its reverse (21102211222), we get a palindrome (43313431334).

The spelling of 22211220112 in words is "twenty-two billion, two hundred eleven million, two hundred twenty thousand, one hundred twelve".