202101111099617 has 2 divisors, whose sum is σ = 202101111099618. Its totient is φ = 202101111099616.

The previous prime is 202101111099539. The next prime is 202101111099647. The reversal of 202101111099617 is 716990111101202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164980897671121 + 37120213428496 = 12844489^2 + 6092636^2 .

It is a cyclic number.

It is not a de Polignac number, because 202101111099617 - 2¹⁴ = 202101111083233 is a prime.

It is not a weakly prime, because it can be changed into another prime (202101111099647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101050555549808 + 101050555549809.

It is an arithmetic number, because the mean of its divisors is an integer number (101050555549809).

Almost surely, 2^{202101111099617} is an apocalyptic number.

It is an amenable number.

202101111099617 is a deficient number, since it is larger than the sum of its proper divisors (1).

202101111099617 is an equidigital number, since it uses as much as digits as its factorization.

202101111099617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 41.

The spelling of 202101111099617 in words is "two hundred two trillion, one hundred one billion, one hundred eleven million, ninety-nine thousand, six hundred seventeen".