202221120211001 has 4 divisors (see below), whose sum is σ = 202419570771600. Its totient is φ = 202022669650404.

The previous prime is 202221120210973. The next prime is 202221120211003. The reversal of 202221120211001 is 100112021122202.

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 202221120211001 - 2²⁶ = 202221053102137 is a prime.

It is a super-2 number, since 2×202221120211001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202221120211003) 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 3 ways as a sum of consecutive naturals, for example, 99225278771 + ... + 99225280808.

It is an arithmetic number, because the mean of its divisors is an integer number (50604892692900).

Almost surely, 2^{202221120211001} is an apocalyptic number.

It is an amenable number.

202221120211001 is a deficient number, since it is larger than the sum of its proper divisors (198450560599).

202221120211001 is a wasteful number, since it uses less digits than its factorization.

202221120211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198450560598.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 202221120211001 its reverse (100112021122202), we get a palindrome (302333141333203).

The spelling of 202221120211001 in words is "two hundred two trillion, two hundred twenty-one billion, one hundred twenty million, two hundred eleven thousand, one".