22202020100121 has 4 divisors (see below), whose sum is σ = 29602693466832. Its totient is φ = 14801346733412.

The previous prime is 22202020100111. The next prime is 22202020100123. The reversal of 22202020100121 is 12100102020222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22202020100121 - 2²⁵ = 22201986545689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22202020100121.

It is not an unprimeable number, because it can be changed into a prime (22202020100123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3700336683351 + ... + 3700336683356.

It is an arithmetic number, because the mean of its divisors is an integer number (7400673366708).

Almost surely, 2^{22202020100121} is an apocalyptic number.

It is an amenable number.

22202020100121 is a deficient number, since it is larger than the sum of its proper divisors (7400673366711).

22202020100121 is an equidigital number, since it uses as much as digits as its factorization.

22202020100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7400673366710.

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

Adding to 22202020100121 its reverse (12100102020222), we get a palindrome (34302122120343).

The spelling of 22202020100121 in words is "twenty-two trillion, two hundred two billion, twenty million, one hundred thousand, one hundred twenty-one".