2199227917 has 2 divisors, whose sum is σ = 2199227918. Its totient is φ = 2199227916.

The previous prime is 2199227893. The next prime is 2199227929. The reversal of 2199227917 is 7197229912.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1940050116 + 259177801 = 44046^2 + 16099^2 .

It is a cyclic number.

It is not a de Polignac number, because 2199227917 - 2³¹ = 51744269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2199527917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1099613958 + 1099613959.

It is an arithmetic number, because the mean of its divisors is an integer number (1099613959).

Almost surely, 2^2199227917 is an apocalyptic number.

It is an amenable number.

2199227917 is a deficient number, since it is larger than the sum of its proper divisors (1).

2199227917 is an equidigital number, since it uses as much as digits as its factorization.

2199227917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 49.

The square root of 2199227917 is about 46895.9264435622. The cubic root of 2199227917 is about 1300.4392829062.

The spelling of 2199227917 in words is "two billion, one hundred ninety-nine million, two hundred twenty-seven thousand, nine hundred seventeen".