22010112220 has 96 divisors (see below), whose sum is σ = 48933642240. Its totient is φ = 8303493120.

The previous prime is 22010112167. The next prime is 22010112227. The reversal of 22010112220 is 2221101022.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22010112220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22010112227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7487511 + ... + 7490449.

It is an arithmetic number, because the mean of its divisors is an integer number (509725440).

Almost surely, 2^22010112220 is an apocalyptic number.

22010112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22010112220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24466821120).

22010112220 is an abundant number, since it is smaller than the sum of its proper divisors (26923530020).

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

22010112220 is a wasteful number, since it uses less digits than its factorization.

22010112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3283 (or 3281 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22010112220 its reverse (2221101022), we get a palindrome (24231213242).

The spelling of 22010112220 in words is "twenty-two billion, ten million, one hundred twelve thousand, two hundred twenty".