2216330993 has 2 divisors, whose sum is σ = 2216330994. Its totient is φ = 2216330992.

The previous prime is 2216330947. The next prime is 2216330999. The reversal of 2216330993 is 3990336122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2172678544 + 43652449 = 46612^2 + 6607^2 .

It is a cyclic number.

It is not a de Polignac number, because 2216330993 - 2²⁴ = 2199553777 is a prime.

It is not a weakly prime, because it can be changed into another prime (2216330999) 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, 1108165496 + 1108165497.

It is an arithmetic number, because the mean of its divisors is an integer number (1108165497).

Almost surely, 2^2216330993 is an apocalyptic number.

It is an amenable number.

2216330993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2216330993 is an equidigital number, since it uses as much as digits as its factorization.

2216330993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 38.

The square root of 2216330993 is about 47077.9246887541. The cubic root of 2216330993 is about 1303.8016907161.

The spelling of 2216330993 in words is "two billion, two hundred sixteen million, three hundred thirty thousand, nine hundred ninety-three".