216180227 has 2 divisors, whose sum is σ = 216180228. Its totient is φ = 216180226.

The previous prime is 216180203. The next prime is 216180241. The reversal of 216180227 is 722081612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 216180227 - 2¹⁰ = 216179203 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 216180227.

It is not a weakly prime, because it can be changed into another prime (216180247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108090113 + 108090114.

It is an arithmetic number, because the mean of its divisors is an integer number (108090114).

Almost surely, 2^216180227 is an apocalyptic number.

216180227 is a deficient number, since it is larger than the sum of its proper divisors (1).

216180227 is an equidigital number, since it uses as much as digits as its factorization.

216180227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 216180227 is about 14703.0686252904. The cubic root of 216180227 is about 600.1668304602.

The spelling of 216180227 in words is "two hundred sixteen million, one hundred eighty thousand, two hundred twenty-seven".