202222200121 has 4 divisors (see below), whose sum is σ = 202624232832. Its totient is φ = 201820167412.

The previous prime is 202222200073. The next prime is 202222200139. The reversal of 202222200121 is 121002222202.

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 202222200121 - 2¹³ = 202222191929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202222200095 and 202222200104.

It is not an unprimeable number, because it can be changed into a prime (202252200121) 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, 201015601 + ... + 201016606.

It is an arithmetic number, because the mean of its divisors is an integer number (50656058208).

Almost surely, 2^202222200121 is an apocalyptic number.

It is an amenable number.

202222200121 is a deficient number, since it is larger than the sum of its proper divisors (402032711).

202222200121 is an equidigital number, since it uses as much as digits as its factorization.

202222200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402032710.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 202222200121 its reverse (121002222202), we get a palindrome (323224422323).

The spelling of 202222200121 in words is "two hundred two billion, two hundred twenty-two million, two hundred thousand, one hundred twenty-one".