2001010100099 has 4 divisors (see below), whose sum is σ = 2006462444064. Its totient is φ = 1995557756136.

The previous prime is 2001010100069. The next prime is 2001010100129. The reversal of 2001010100099 is 9900010101002.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2001010100069) and next prime (2001010100129).

It is a cyclic number.

It is not a de Polignac number, because 2001010100099 - 2¹² = 2001010096003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001010100069) 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 in 3 ways as a sum of consecutive naturals, for example, 2726171432 + ... + 2726172165.

It is an arithmetic number, because the mean of its divisors is an integer number (501615611016).

Almost surely, 2^{2001010100099} is an apocalyptic number.

2001010100099 is a deficient number, since it is larger than the sum of its proper divisors (5452343965).

2001010100099 is an equidigital number, since it uses as much as digits as its factorization.

2001010100099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5452343964.

The product of its (nonzero) digits is 162, while the sum is 23.

It can be divided in two parts, 200101010009 and 9, that multiplied together give a palindrome (1800909090081).

The spelling of 2001010100099 in words is "two trillion, one billion, ten million, one hundred thousand, ninety-nine".