202001202211121 has 4 divisors (see below), whose sum is σ = 205424951401200. Its totient is φ = 198577453021044.

The previous prime is 202001202211097. The next prime is 202001202211139. The reversal of 202001202211121 is 121112202100202.

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 202001202211121 - 2²² = 202001198016817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202001202211121.

It is not an unprimeable number, because it can be changed into a prime (202001282211121) 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, 1711874594951 + ... + 1711874595068.

It is an arithmetic number, because the mean of its divisors is an integer number (51356237850300).

Almost surely, 2^{202001202211121} is an apocalyptic number.

It is an amenable number.

202001202211121 is a deficient number, since it is larger than the sum of its proper divisors (3423749190079).

202001202211121 is an equidigital number, since it uses as much as digits as its factorization.

202001202211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3423749190078.

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

Adding to 202001202211121 its reverse (121112202100202), we get a palindrome (323113404311323).

The spelling of 202001202211121 in words is "two hundred two trillion, one billion, two hundred two million, two hundred eleven thousand, one hundred twenty-one".