218600227 has 2 divisors, whose sum is σ = 218600228. Its totient is φ = 218600226.

The previous prime is 218600219. The next prime is 218600293. The reversal of 218600227 is 722006812.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 218600227 - 2³ = 218600219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 218600195 and 218600204.

It is not a weakly prime, because it can be changed into another prime (218604227) 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, 109300113 + 109300114.

It is an arithmetic number, because the mean of its divisors is an integer number (109300114).

Almost surely, 2^218600227 is an apocalyptic number.

218600227 is a deficient number, since it is larger than the sum of its proper divisors (1).

218600227 is an equidigital number, since it uses as much as digits as its factorization.

218600227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 218600227 is about 14785.1353392521. The cubic root of 218600227 is about 602.3980206525.

The spelling of 218600227 in words is "two hundred eighteen million, six hundred thousand, two hundred twenty-seven".