218227 has 2 divisors, whose sum is σ = 218228. Its totient is φ = 218226.

The previous prime is 218213. The next prime is 218233. The reversal of 218227 is 722812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 218227 - 2¹¹ = 216179 is a prime.

It is equal to p₁₉₄₆₂ and since 218227 and 19462 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 218198 and 218207.

It is not a weakly prime, because it can be changed into another prime (218287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109113 + 109114.

It is an arithmetic number, because the mean of its divisors is an integer number (109114).

2²¹⁸²²⁷ is an apocalyptic number.

218227 is a deficient number, since it is larger than the sum of its proper divisors (1).

218227 is an equidigital number, since it uses as much as digits as its factorization.

218227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 448, while the sum is 22.

The square root of 218227 is about 467.1477282402. The cubic root of 218227 is about 60.2054990690.

It can be divided in two parts, 2182 and 27, that added together give a square (2209 = 47²).

The spelling of 218227 in words is "two hundred eighteen thousand, two hundred twenty-seven".