390320221099 has 2 divisors, whose sum is σ = 390320221100. Its totient is φ = 390320221098.

The previous prime is 390320221091. The next prime is 390320221129. The reversal of 390320221099 is 990122023093.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 390320221099 - 2³ = 390320221091 is a prime.

It is not a weakly prime, because it can be changed into another prime (390320221091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195160110549 + 195160110550.

It is an arithmetic number, because the mean of its divisors is an integer number (195160110550).

Almost surely, 2^390320221099 is an apocalyptic number.

390320221099 is a deficient number, since it is larger than the sum of its proper divisors (1).

390320221099 is an equidigital number, since it uses as much as digits as its factorization.

390320221099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 40.

The spelling of 390320221099 in words is "three hundred ninety billion, three hundred twenty million, two hundred twenty-one thousand, ninety-nine".