202200220221121 has 4 divisors (see below), whose sum is σ = 202202217026352. Its totient is φ = 202198223415892.

The previous prime is 202200220221071. The next prime is 202200220221137. The reversal of 202200220221121 is 121122022002202.

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 202200220221121 - 2²⁵ = 202200186666689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202200220225121) 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, 998250715 + ... + 998453248.

It is an arithmetic number, because the mean of its divisors is an integer number (50550554256588).

Almost surely, 2^{202200220221121} is an apocalyptic number.

It is an amenable number.

202200220221121 is a deficient number, since it is larger than the sum of its proper divisors (1996805231).

202200220221121 is a wasteful number, since it uses less digits than its factorization.

202200220221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996805230.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 202200220221121 its reverse (121122022002202), we get a palindrome (323322242223323).

The spelling of 202200220221121 in words is "two hundred two trillion, two hundred billion, two hundred twenty million, two hundred twenty-one thousand, one hundred twenty-one".