202222110121 has 4 divisors (see below), whose sum is σ = 202585166532. Its totient is φ = 201859053712.

The previous prime is 202222110059. The next prime is 202222110127. The reversal of 202222110121 is 121011222202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20660900121 + 181561210000 = 143739^2 + 426100^2 .

It is a cyclic number.

It is not a de Polignac number, because 202222110121 - 2¹⁷ = 202221979049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202222110095 and 202222110104.

It is not an unprimeable number, because it can be changed into a prime (202222110127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181527370 + ... + 181528483.

It is an arithmetic number, because the mean of its divisors is an integer number (50646291633).

Almost surely, 2^202222110121 is an apocalyptic number.

It is an amenable number.

202222110121 is a deficient number, since it is larger than the sum of its proper divisors (363056411).

202222110121 is an equidigital number, since it uses as much as digits as its factorization.

202222110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363056410.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202222110121 its reverse (121011222202), we get a palindrome (323233332323).

The spelling of 202222110121 in words is "two hundred two billion, two hundred twenty-two million, one hundred ten thousand, one hundred twenty-one".