202102303322221 has 2 divisors, whose sum is σ = 202102303322222. Its totient is φ = 202102303322220.

The previous prime is 202102303322177. The next prime is 202102303322243. The reversal of 202102303322221 is 122223303201202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110685949106121 + 91416354216100 = 10520739^2 + 9561190^2 .

It is a cyclic number.

It is not a de Polignac number, because 202102303322221 - 2⁷ = 202102303322093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202102303422221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101051151661110 + 101051151661111.

It is an arithmetic number, because the mean of its divisors is an integer number (101051151661111).

Almost surely, 2^{202102303322221} is an apocalyptic number.

It is an amenable number.

202102303322221 is a deficient number, since it is larger than the sum of its proper divisors (1).

202102303322221 is an equidigital number, since it uses as much as digits as its factorization.

202102303322221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 202102303322221 its reverse (122223303201202), we get a palindrome (324325606523423).

The spelling of 202102303322221 in words is "two hundred two trillion, one hundred two billion, three hundred three million, three hundred twenty-two thousand, two hundred twenty-one".