2122100995717 has 2 divisors, whose sum is σ = 2122100995718. Its totient is φ = 2122100995716.

The previous prime is 2122100995681. The next prime is 2122100995747. The reversal of 2122100995717 is 7175990012212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1962153791361 + 159947204356 = 1400769^2 + 399934^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122100995717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122100995747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061050497858 + 1061050497859.

It is an arithmetic number, because the mean of its divisors is an integer number (1061050497859).

Almost surely, 2^{2122100995717} is an apocalyptic number.

It is an amenable number.

2122100995717 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122100995717 is an equidigital number, since it uses as much as digits as its factorization.

2122100995717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 46.

The spelling of 2122100995717 in words is "two trillion, one hundred twenty-two billion, one hundred million, nine hundred ninety-five thousand, seven hundred seventeen".