2020001021099 has 2 divisors, whose sum is σ = 2020001021100. Its totient is φ = 2020001021098.

The previous prime is 2020001021069. The next prime is 2020001021167. The reversal of 2020001021099 is 9901201000202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2020001021099 - 2¹² = 2020001017003 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2020001021069) 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, 1010000510549 + 1010000510550.

It is an arithmetic number, because the mean of its divisors is an integer number (1010000510550).

Almost surely, 2^{2020001021099} is an apocalyptic number.

2020001021099 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020001021099 is an equidigital number, since it uses as much as digits as its factorization.

2020001021099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 2020001021099 in words is "two trillion, twenty billion, one million, twenty-one thousand, ninety-nine".