210021012002099 has 4 divisors (see below), whose sum is σ = 210100056420264. Its totient is φ = 209941967583936.

The previous prime is 210021012002041. The next prime is 210021012002171. The reversal of 210021012002099 is 990200210120012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210021012002099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210021812002099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39522205097 + ... + 39522210410.

It is an arithmetic number, because the mean of its divisors is an integer number (52525014105066).

Almost surely, 2^{210021012002099} is an apocalyptic number.

210021012002099 is a deficient number, since it is larger than the sum of its proper divisors (79044418165).

210021012002099 is an equidigital number, since it uses as much as digits as its factorization.

210021012002099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79044418164.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 210021012002099 in words is "two hundred ten trillion, twenty-one billion, twelve million, two thousand, ninety-nine".