22010200121 has 16 divisors (see below), whose sum is σ = 27092986368. Its totient is φ = 17412408000.

The previous prime is 22010200097. The next prime is 22010200159. The reversal of 22010200121 is 12100201022.

It is a happy number.

It is not a de Polignac number, because 22010200121 - 2²² = 22006005817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22010202121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1245296 + ... + 1262846.

It is an arithmetic number, because the mean of its divisors is an integer number (1693311648).

Almost surely, 2^22010200121 is an apocalyptic number.

It is an amenable number.

22010200121 is a deficient number, since it is larger than the sum of its proper divisors (5082786247).

22010200121 is a wasteful number, since it uses less digits than its factorization.

22010200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31352.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22010200121 its reverse (12100201022), we get a palindrome (34110401143).

Subtracting from 22010200121 its reverse (12100201022), we obtain a palindrome (9909999099).

The spelling of 22010200121 in words is "twenty-two billion, ten million, two hundred thousand, one hundred twenty-one".