2220997117 has 2 divisors, whose sum is σ = 2220997118. Its totient is φ = 2220997116.

The previous prime is 2220997111. The next prime is 2220997127. The reversal of 2220997117 is 7117990222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2003994756 + 217002361 = 44766^2 + 14731^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2220997117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2220997117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2220997111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110498558 + 1110498559.

It is an arithmetic number, because the mean of its divisors is an integer number (1110498559).

Almost surely, 2^2220997117 is an apocalyptic number.

It is an amenable number.

2220997117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220997117 is an equidigital number, since it uses as much as digits as its factorization.

2220997117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 2220997117 is about 47127.4560845374. The cubic root of 2220997117 is about 1304.7160300684.

The spelling of 2220997117 in words is "two billion, two hundred twenty million, nine hundred ninety-seven thousand, one hundred seventeen".