202404402221 has 16 divisors (see below), whose sum is σ = 236606386176. Its totient is φ = 169535604336.

The previous prime is 202404402199. The next prime is 202404402229. The reversal of 202404402221 is 122204404202.

It is not a de Polignac number, because 202404402221 - 2¹⁰ = 202404401197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202404402229) 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 15 ways as a sum of consecutive naturals, for example, 262571 + ... + 688296.

It is an arithmetic number, because the mean of its divisors is an integer number (14787899136).

Almost surely, 2^202404402221 is an apocalyptic number.

It is an amenable number.

202404402221 is a deficient number, since it is larger than the sum of its proper divisors (34201983955).

202404402221 is an equidigital number, since it uses as much as digits as its factorization.

202404402221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951568.

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 202404402221 its reverse (122204404202), we get a palindrome (324608806423).

The spelling of 202404402221 in words is "two hundred two billion, four hundred four million, four hundred two thousand, two hundred twenty-one".