218880227 has 2 divisors, whose sum is σ = 218880228. Its totient is φ = 218880226.

The previous prime is 218880131. The next prime is 218880229. The reversal of 218880227 is 722088812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 218880227 - 2¹⁶ = 218814691 is a prime.

Together with 218880229, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (218880229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109440113 + 109440114.

It is an arithmetic number, because the mean of its divisors is an integer number (109440114).

Almost surely, 2^218880227 is an apocalyptic number.

218880227 is a deficient number, since it is larger than the sum of its proper divisors (1).

218880227 is an equidigital number, since it uses as much as digits as its factorization.

218880227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 218880227 is about 14794.6012788449. The cubic root of 218880227 is about 602.6551101708.

The spelling of 218880227 in words is "two hundred eighteen million, eight hundred eighty thousand, two hundred twenty-seven".