22212220112222 has 16 divisors (see below), whose sum is σ = 38085280362720. Its totient is φ = 9517725719808.

The previous prime is 22212220112221. The next prime is 22212220112249. The reversal of 22212220112222 is 22221102221222.

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, 149688647 + ... + 149836962.

It is an arithmetic number, because the mean of its divisors is an integer number (2380330022670).

Almost surely, 2^{22212220112222} is an apocalyptic number.

22212220112222 is a deficient number, since it is larger than the sum of its proper divisors (15873060250498).

22212220112222 is a wasteful number, since it uses less digits than its factorization.

22212220112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299530915.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 22212220112222 its reverse (22221102221222), we get a palindrome (44433322333444).

The spelling of 22212220112222 in words is "twenty-two trillion, two hundred twelve billion, two hundred twenty million, one hundred twelve thousand, two hundred twenty-two".