220199993939 has 2 divisors, whose sum is σ = 220199993940. Its totient is φ = 220199993938.

The previous prime is 220199993921. The next prime is 220199993971. The reversal of 220199993939 is 939399991022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220199993939 is a prime.

It is not a weakly prime, because it can be changed into another prime (220199993239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110099996969 + 110099996970.

It is an arithmetic number, because the mean of its divisors is an integer number (110099996970).

Almost surely, 2^220199993939 is an apocalyptic number.

220199993939 is a deficient number, since it is larger than the sum of its proper divisors (1).

220199993939 is an equidigital number, since it uses as much as digits as its factorization.

220199993939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19131876, while the sum is 65.

The spelling of 220199993939 in words is "two hundred twenty billion, one hundred ninety-nine million, nine hundred ninety-three thousand, nine hundred thirty-nine".