2220994717 has 2 divisors, whose sum is σ = 2220994718. Its totient is φ = 2220994716.

The previous prime is 2220994663. The next prime is 2220994739. The reversal of 2220994717 is 7174990222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1748410596 + 472584121 = 41814^2 + 21739^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220994717 - 2¹⁹ = 2220470429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2220994757) 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, 1110497358 + 1110497359.

It is an arithmetic number, because the mean of its divisors is an integer number (1110497359).

Almost surely, 2^2220994717 is an apocalyptic number.

It is an amenable number.

2220994717 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220994717 is an equidigital number, since it uses as much as digits as its factorization.

2220994717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 2220994717 is about 47127.4306216666. The cubic root of 2220994717 is about 1304.7155601113.

The spelling of 2220994717 in words is "two billion, two hundred twenty million, nine hundred ninety-four thousand, seven hundred seventeen".