22201122212 has 12 divisors (see below), whose sum is σ = 38877154176. Its totient is φ = 11093363880.

The previous prime is 22201122193. The next prime is 22201122217. The reversal of 22201122212 is 21222110222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22201122217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1792364 + ... + 1804707.

It is an arithmetic number, because the mean of its divisors is an integer number (3239762848).

Almost surely, 2^22201122212 is an apocalyptic number.

It is an amenable number.

22201122212 is a deficient number, since it is larger than the sum of its proper divisors (16676031964).

22201122212 is a wasteful number, since it uses less digits than its factorization.

22201122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3598618 (or 3598616 counting only the distinct ones).

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

Adding to 22201122212 its reverse (21222110222), we get a palindrome (43423232434).

The spelling of 22201122212 in words is "twenty-two billion, two hundred one million, one hundred twenty-two thousand, two hundred twelve".