218260223 has 2 divisors, whose sum is σ = 218260224. Its totient is φ = 218260222.

The previous prime is 218260213. The next prime is 218260241. The reversal of 218260223 is 322062812.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 218260223 - 2¹⁰ = 218259199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 218260192 and 218260201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (218260213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109130111 + 109130112.

It is an arithmetic number, because the mean of its divisors is an integer number (109130112).

Almost surely, 2^218260223 is an apocalyptic number.

218260223 is a deficient number, since it is larger than the sum of its proper divisors (1).

218260223 is an equidigital number, since it uses as much as digits as its factorization.

218260223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 218260223 is about 14773.6326947708. The cubic root of 218260223 is about 602.0855415358.

The spelling of 218260223 in words is "two hundred eighteen million, two hundred sixty thousand, two hundred twenty-three".