202202112211997 has 2 divisors, whose sum is σ = 202202112211998. Its totient is φ = 202202112211996.

The previous prime is 202202112211993. The next prime is 202202112212053. The reversal of 202202112211997 is 799112211202202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115232946784921 + 86969165427076 = 10734661^2 + 9325726^2 .

It is a cyclic number.

It is not a de Polignac number, because 202202112211997 - 2² = 202202112211993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202202112211993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101101056105998 + 101101056105999.

It is an arithmetic number, because the mean of its divisors is an integer number (101101056105999).

Almost surely, 2^{202202112211997} is an apocalyptic number.

It is an amenable number.

202202112211997 is a deficient number, since it is larger than the sum of its proper divisors (1).

202202112211997 is an equidigital number, since it uses as much as digits as its factorization.

202202112211997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 41.

The spelling of 202202112211997 in words is "two hundred two trillion, two hundred two billion, one hundred twelve million, two hundred eleven thousand, nine hundred ninety-seven".