22010000121 has 24 divisors (see below), whose sum is σ = 34920525120. Its totient is φ = 13296656736.

The previous prime is 22010000099. The next prime is 22010000143. The reversal of 22010000121 is 12100001022.

It is an interprime number because it is at equal distance from previous prime (22010000099) and next prime (22010000143).

It is not a de Polignac number, because 22010000121 - 2¹³ = 22009991929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (22010000161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2794186 + ... + 2802051.

It is an arithmetic number, because the mean of its divisors is an integer number (1455021880).

Almost surely, 2^22010000121 is an apocalyptic number.

It is an amenable number.

22010000121 is a deficient number, since it is larger than the sum of its proper divisors (12910524999).

22010000121 is a wasteful number, since it uses less digits than its factorization.

22010000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5596285 (or 5596282 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 22010000121 its reverse (12100001022), we get a palindrome (34110001143).

Subtracting from 22010000121 its reverse (12100001022), we obtain a palindrome (9909999099).

The spelling of 22010000121 in words is "twenty-two billion, ten million, one hundred twenty-one", and thus it is an aban number.