22222112022 has 40 divisors (see below), whose sum is σ = 54320722632. Its totient is φ = 6733972800.

The previous prime is 22222111997. The next prime is 22222112023. The reversal of 22222112022 is 22021122222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22222111986 and 22222112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222112023) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6233379 + ... + 6236942.

Almost surely, 2^22222112022 is an apocalyptic number.

22222112022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22222112022 is an abundant number, since it is smaller than the sum of its proper divisors (32098610610).

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

22222112022 is a wasteful number, since it uses less digits than its factorization.

22222112022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12470346 (or 12470337 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22222112022 its reverse (22021122222), we get a palindrome (44243234244).

The spelling of 22222112022 in words is "twenty-two billion, two hundred twenty-two million, one hundred twelve thousand, twenty-two".