2217918223 has 2 divisors, whose sum is σ = 2217918224. Its totient is φ = 2217918222.

The previous prime is 2217918217. The next prime is 2217918253. The reversal of 2217918223 is 3228197122.

2217918223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2217918223 - 2⁵ = 2217918191 is a prime.

It is a super-2 number, since 2×2217918223² = 9838322487830955458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2217918253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108959111 + 1108959112.

It is an arithmetic number, because the mean of its divisors is an integer number (1108959112).

Almost surely, 2^2217918223 is an apocalyptic number.

2217918223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2217918223 is an equidigital number, since it uses as much as digits as its factorization.

2217918223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 37.

The square root of 2217918223 is about 47094.7791480117. The cubic root of 2217918223 is about 1304.1128565349.

The spelling of 2217918223 in words is "two billion, two hundred seventeen million, nine hundred eighteen thousand, two hundred twenty-three".