2212794801817 has 2 divisors, whose sum is σ = 2212794801818. Its totient is φ = 2212794801816.

The previous prime is 2212794801733. The next prime is 2212794801823. The reversal of 2212794801817 is 7181084972122.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1820491753536 + 392303048281 = 1349256^2 + 626341^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212794801817 - 2⁷ = 2212794801689 is a prime.

It is not a weakly prime, because it can be changed into another prime (2212794801017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106397400908 + 1106397400909.

It is an arithmetic number, because the mean of its divisors is an integer number (1106397400909).

Almost surely, 2^{2212794801817} is an apocalyptic number.

It is an amenable number.

2212794801817 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212794801817 is an equidigital number, since it uses as much as digits as its factorization.

2212794801817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 903168, while the sum is 52.

The spelling of 2212794801817 in words is "two trillion, two hundred twelve billion, seven hundred ninety-four million, eight hundred one thousand, eight hundred seventeen".