218492287201 has 2 divisors, whose sum is σ = 218492287202. Its totient is φ = 218492287200.

The previous prime is 218492287151. The next prime is 218492287213. The reversal of 218492287201 is 102782294812.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185295811600 + 33196475601 = 430460^2 + 182199^2 .

It is a cyclic number.

It is not a de Polignac number, because 218492287201 - 2⁹ = 218492286689 is a prime.

It is not a weakly prime, because it can be changed into another prime (218492287231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109246143600 + 109246143601.

It is an arithmetic number, because the mean of its divisors is an integer number (109246143601).

Almost surely, 2^218492287201 is an apocalyptic number.

It is an amenable number.

218492287201 is a deficient number, since it is larger than the sum of its proper divisors (1).

218492287201 is an equidigital number, since it uses as much as digits as its factorization.

218492287201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 46.

The spelling of 218492287201 in words is "two hundred eighteen billion, four hundred ninety-two million, two hundred eighty-seven thousand, two hundred one".