2001220099163 has 2 divisors, whose sum is σ = 2001220099164. Its totient is φ = 2001220099162.

The previous prime is 2001220099157. The next prime is 2001220099187. The reversal of 2001220099163 is 3619900221002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2001220099163 - 2⁴ = 2001220099147 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2001220099063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000610049581 + 1000610049582.

It is an arithmetic number, because the mean of its divisors is an integer number (1000610049582).

Almost surely, 2^{2001220099163} is an apocalyptic number.

2001220099163 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001220099163 is an equidigital number, since it uses as much as digits as its factorization.

2001220099163 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 35.

The spelling of 2001220099163 in words is "two trillion, one billion, two hundred twenty million, ninety-nine thousand, one hundred sixty-three".