202210002217121 has 2 divisors, whose sum is σ = 202210002217122. Its totient is φ = 202210002217120.

The previous prime is 202210002217117. The next prime is 202210002217123. The reversal of 202210002217121 is 121712200012202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178354983311521 + 23855018905600 = 13354961^2 + 4884160^2 .

It is a cyclic number.

It is not a de Polignac number, because 202210002217121 - 2² = 202210002217117 is a prime.

Together with 202210002217123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (202210002217123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101105001108560 + 101105001108561.

It is an arithmetic number, because the mean of its divisors is an integer number (101105001108561).

Almost surely, 2^{202210002217121} is an apocalyptic number.

It is an amenable number.

202210002217121 is a deficient number, since it is larger than the sum of its proper divisors (1).

202210002217121 is an equidigital number, since it uses as much as digits as its factorization.

202210002217121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 202210002217121 its reverse (121712200012202), we get a palindrome (323922202229323).

The spelling of 202210002217121 in words is "two hundred two trillion, two hundred ten billion, two million, two hundred seventeen thousand, one hundred twenty-one".