2217114917 has 2 divisors, whose sum is σ = 2217114918. Its totient is φ = 2217114916.

The previous prime is 2217114899. The next prime is 2217114929. The reversal of 2217114917 is 7194117122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2011163716 + 205951201 = 44846^2 + 14351^2 .

It is a cyclic number.

It is not a de Polignac number, because 2217114917 - 2⁸ = 2217114661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2217114217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108557458 + 1108557459.

It is an arithmetic number, because the mean of its divisors is an integer number (1108557459).

Almost surely, 2^2217114917 is an apocalyptic number.

It is an amenable number.

2217114917 is a deficient number, since it is larger than the sum of its proper divisors (1).

2217114917 is an equidigital number, since it uses as much as digits as its factorization.

2217114917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 35.

The square root of 2217114917 is about 47086.2497657225. The cubic root of 2217114917 is about 1303.9553923306.

The spelling of 2217114917 in words is "two billion, two hundred seventeen million, one hundred fourteen thousand, nine hundred seventeen".