102202021111997 has 2 divisors, whose sum is σ = 102202021111998. Its totient is φ = 102202021111996.

The previous prime is 102202021111951. The next prime is 102202021112017. The reversal of 102202021111997 is 799111120202201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66011822554756 + 36190198557241 = 8124766^2 + 6015829^2 .

It is a cyclic number.

It is not a de Polignac number, because 102202021111997 - 2¹⁸ = 102202020849853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102202021111997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102202027111997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51101010555998 + 51101010555999.

It is an arithmetic number, because the mean of its divisors is an integer number (51101010555999).

Almost surely, 2^{102202021111997} is an apocalyptic number.

It is an amenable number.

102202021111997 is a deficient number, since it is larger than the sum of its proper divisors (1).

102202021111997 is an equidigital number, since it uses as much as digits as its factorization.

102202021111997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 38.

The spelling of 102202021111997 in words is "one hundred two trillion, two hundred two billion, twenty-one million, one hundred eleven thousand, nine hundred ninety-seven".