22212621222 has 24 divisors (see below), whose sum is σ = 48831053208. Its totient is φ = 6731097120.

The previous prime is 22212621187. The next prime is 22212621271.

It is a happy number.

22212621222 is nontrivially palindromic in base 10.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 22212621192 and 22212621201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15297223 + ... + 15298674.

It is an arithmetic number, because the mean of its divisors is an integer number (2034627217).

Almost surely, 2^22212621222 is an apocalyptic number.

22212621222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22212621222 is an abundant number, since it is smaller than the sum of its proper divisors (26618431986).

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

22212621222 is a wasteful number, since it uses less digits than its factorization.

22212621222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30595924 (or 30595913 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The spelling of 22212621222 in words is "twenty-two billion, two hundred twelve million, six hundred twenty-one thousand, two hundred twenty-two".