2218207 has 2 divisors, whose sum is σ = 2218208. Its totient is φ = 2218206.

The previous prime is 2218201. The next prime is 2218213. The reversal of 2218207 is 7028122.

It is a balanced prime because it is at equal distance from previous prime (2218201) and next prime (2218213).

It is a cyclic number.

It is not a de Polignac number, because 2218207 - 2³ = 2218199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2218201) 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, 1109103 + 1109104.

It is an arithmetic number, because the mean of its divisors is an integer number (1109104).

2^2218207 is an apocalyptic number.

2218207 is a deficient number, since it is larger than the sum of its proper divisors (1).

2218207 is an equidigital number, since it uses as much as digits as its factorization.

2218207 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2218207 is about 1489.3646296324. The cubic root of 2218207 is about 130.4169453370.

The spelling of 2218207 in words is "two million, two hundred eighteen thousand, two hundred seven".