1010002100999 has 2 divisors, whose sum is σ = 1010002101000. Its totient is φ = 1010002100998.

The previous prime is 1010002100993. The next prime is 1010002101001. The reversal of 1010002100999 is 9990012000101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1010002100999 - 2⁴ = 1010002100983 is a prime.

Together with 1010002101001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010002100993) 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, 505001050499 + 505001050500.

It is an arithmetic number, because the mean of its divisors is an integer number (505001050500).

Almost surely, 2^{1010002100999} is an apocalyptic number.

1010002100999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010002100999 is an equidigital number, since it uses as much as digits as its factorization.

1010002100999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 32.

The spelling of 1010002100999 in words is "one trillion, ten billion, two million, one hundred thousand, nine hundred ninety-nine".