22212220112220 has 24 divisors (see below), whose sum is σ = 62194216314384. Its totient is φ = 5923258696576.

The previous prime is 22212220112219. The next prime is 22212220112221. The reversal of 22212220112220 is 2221102221222.

It is an interprime number because it is at equal distance from previous prime (22212220112219) and next prime (22212220112221).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212220112221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185101834209 + ... + 185101834328.

It is an arithmetic number, because the mean of its divisors is an integer number (2591425679766).

Almost surely, 2^{22212220112220} is an apocalyptic number.

22212220112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22212220112220 is an abundant number, since it is smaller than the sum of its proper divisors (39981996202164).

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

22212220112220 is a wasteful number, since it uses less digits than its factorization.

22212220112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370203668549 (or 370203668547 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22212220112220 its reverse (2221102221222), we get a palindrome (24433322333442).

The spelling of 22212220112220 in words is "twenty-two trillion, two hundred twelve billion, two hundred twenty million, one hundred twelve thousand, two hundred twenty".