220123699 has 2 divisors, whose sum is σ = 220123700. Its totient is φ = 220123698.

The previous prime is 220123621. The next prime is 220123733. The reversal of 220123699 is 996321022.

It is an a-pointer prime, because the next prime (220123733) can be obtained adding 220123699 to its sum of digits (34).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220123699 - 2⁷ = 220123571 is a prime.

It is a super-2 number, since 2×220123699² = 96908885722885202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220123199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110061849 + 110061850.

It is an arithmetic number, because the mean of its divisors is an integer number (110061850).

Almost surely, 2^220123699 is an apocalyptic number.

220123699 is a deficient number, since it is larger than the sum of its proper divisors (1).

220123699 is an equidigital number, since it uses as much as digits as its factorization.

220123699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 220123699 is about 14836.5662806459. The cubic root of 220123699 is about 603.7941960339.

The spelling of 220123699 in words is "two hundred twenty million, one hundred twenty-three thousand, six hundred ninety-nine".