202212210209 has 2 divisors, whose sum is σ = 202212210210. Its totient is φ = 202212210208.

The previous prime is 202212210203. The next prime is 202212210247. The reversal of 202212210209 is 902012212202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107778920209 + 94433290000 = 328297^2 + 307300^2 .

It is a cyclic number.

It is not a de Polignac number, because 202212210209 - 2¹² = 202212206113 is a prime.

It is not a weakly prime, because it can be changed into another prime (202212210203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101106105104 + 101106105105.

It is an arithmetic number, because the mean of its divisors is an integer number (101106105105).

Almost surely, 2^202212210209 is an apocalyptic number.

It is an amenable number.

202212210209 is a deficient number, since it is larger than the sum of its proper divisors (1).

202212210209 is an equidigital number, since it uses as much as digits as its factorization.

202212210209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 202212210209 in words is "two hundred two billion, two hundred twelve million, two hundred ten thousand, two hundred nine".