22102122212 has 24 divisors (see below), whose sum is σ = 40993031520. Its totient is φ = 10391068800.

The previous prime is 22102122209. The next prime is 22102122223. The reversal of 22102122212 is 21222120122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83162 + ... + 226097.

It is an arithmetic number, because the mean of its divisors is an integer number (1708042980).

Almost surely, 2^22102122212 is an apocalyptic number.

It is an amenable number.

22102122212 is a deficient number, since it is larger than the sum of its proper divisors (18890909308).

22102122212 is a wasteful number, since it uses less digits than its factorization.

22102122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310331 (or 310329 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22102122212 its reverse (21222120122), we get a palindrome (43324242334).

The spelling of 22102122212 in words is "twenty-two billion, one hundred two million, one hundred twenty-two thousand, two hundred twelve".