22012022121 has 16 divisors (see below), whose sum is σ = 29433499200. Its totient is φ = 14632648448.

The previous prime is 22012022119. The next prime is 22012022167. The reversal of 22012022121 is 12122021022.

It is a cyclic number.

It is not a de Polignac number, because 22012022121 - 2¹ = 22012022119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22012022121.

It is not an unprimeable number, because it can be changed into a prime (22012022821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4936525 + ... + 4940981.

It is an arithmetic number, because the mean of its divisors is an integer number (1839593700).

Almost surely, 2^22012022121 is an apocalyptic number.

It is an amenable number.

22012022121 is a deficient number, since it is larger than the sum of its proper divisors (7421477079).

22012022121 is a wasteful number, since it uses less digits than its factorization.

22012022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8808.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22012022121 its reverse (12122021022), we get a palindrome (34134043143).

The spelling of 22012022121 in words is "twenty-two billion, twelve million, twenty-two thousand, one hundred twenty-one".