2001001000099 has 2 divisors, whose sum is σ = 2001001000100. Its totient is φ = 2001001000098.

The previous prime is 2001001000093. The next prime is 2001001000121. The reversal of 2001001000099 is 9900001001002.

It is an a-pointer prime, because the next prime (2001001000121) can be obtained adding 2001001000099 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2001001000099 - 2³ = 2001001000091 is a prime.

It is not a weakly prime, because it can be changed into another prime (2001001000091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000500500049 + 1000500500050.

It is an arithmetic number, because the mean of its divisors is an integer number (1000500500050).

Almost surely, 2^{2001001000099} is an apocalyptic number.

2001001000099 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001001000099 is an equidigital number, since it uses as much as digits as its factorization.

2001001000099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 22.

The spelling of 2001001000099 in words is "two trillion, one billion, one million, ninety-nine", and thus it is an aban number and an uban number.