202200121 has 4 divisors (see below), whose sum is σ = 203107072. Its totient is φ = 201293172.

The previous prime is 202200113. The next prime is 202200127. The reversal of 202200121 is 121002202.

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 202200121 - 2³ = 202200113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202200098 and 202200107.

It is not an unprimeable number, because it can be changed into a prime (202200127) 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, 453141 + ... + 453586.

It is an arithmetic number, because the mean of its divisors is an integer number (50776768).

Almost surely, 2^202200121 is an apocalyptic number.

It is an amenable number.

202200121 is a deficient number, since it is larger than the sum of its proper divisors (906951).

202200121 is an equidigital number, since it uses as much as digits as its factorization.

202200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906950.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 202200121 is about 14219.7088929415. The cubic root of 202200121 is about 586.9401297350.

Adding to 202200121 its reverse (121002202), we get a palindrome (323202323).

The spelling of 202200121 in words is "two hundred two million, two hundred thousand, one hundred twenty-one".