22102212222 has 48 divisors (see below), whose sum is σ = 48224816640. Its totient is φ = 7315688016.

The previous prime is 22102212211. The next prime is 22102212283. The reversal of 22102212222 is 22221220122.

22102212222 is a `hidden beast` number, since 221 + 0 + 221 + 2 + 222 = 666.

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 = 22102212195 and 22102212204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4184179 + ... + 4189457.

It is an arithmetic number, because the mean of its divisors is an integer number (1004683680).

Almost surely, 2^22102212222 is an apocalyptic number.

22102212222 is an abundant number, since it is smaller than the sum of its proper divisors (26122604418).

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

22102212222 is a wasteful number, since it uses less digits than its factorization.

22102212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6877 (or 6874 counting only the distinct ones).

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

Adding to 22102212222 its reverse (22221220122), we get a palindrome (44323432344).

The spelling of 22102212222 in words is "twenty-two billion, one hundred two million, two hundred twelve thousand, two hundred twenty-two".