202210221102121 has 4 divisors (see below), whose sum is σ = 202210285759744. Its totient is φ = 202210156444500.

The previous prime is 202210221102073. The next prime is 202210221102139. The reversal of 202210221102121 is 121201122012202.

202210221102121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 202210221102121 - 2²⁵ = 202210187547689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202210221102161) 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, 27385785 + ... + 33976486.

It is an arithmetic number, because the mean of its divisors is an integer number (50552571439936).

Almost surely, 2^{202210221102121} is an apocalyptic number.

It is an amenable number.

202210221102121 is a deficient number, since it is larger than the sum of its proper divisors (64657623).

202210221102121 is an equidigital number, since it uses as much as digits as its factorization.

202210221102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64657622.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 202210221102121 its reverse (121201122012202), we get a palindrome (323411343114323).

The spelling of 202210221102121 in words is "two hundred two trillion, two hundred ten billion, two hundred twenty-one million, one hundred two thousand, one hundred twenty-one".