220666099 has 2 divisors, whose sum is σ = 220666100. Its totient is φ = 220666098.

The previous prime is 220666073. The next prime is 220666123. The reversal of 220666099 is 990666022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220666099 - 2¹⁷ = 220535027 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (220666049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110333049 + 110333050.

It is an arithmetic number, because the mean of its divisors is an integer number (110333050).

Almost surely, 2^220666099 is an apocalyptic number.

220666099 is a deficient number, since it is larger than the sum of its proper divisors (1).

220666099 is an equidigital number, since it uses as much as digits as its factorization.

220666099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 220666099 is about 14854.8341963147. The cubic root of 220666099 is about 604.2897194578.

The spelling of 220666099 in words is "two hundred twenty million, six hundred sixty-six thousand, ninety-nine".