210221000002099 has 2 divisors, whose sum is σ = 210221000002100. Its totient is φ = 210221000002098.

The previous prime is 210221000002087. The next prime is 210221000002193. The reversal of 210221000002099 is 990200000122012.

210221000002099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210221000002099 - 2⁴⁵ = 175036627913267 is a prime.

It is not a weakly prime, because it can be changed into another prime (210221000302099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105110500001049 + 105110500001050.

It is an arithmetic number, because the mean of its divisors is an integer number (105110500001050).

Almost surely, 2^{210221000002099} is an apocalyptic number.

210221000002099 is a deficient number, since it is larger than the sum of its proper divisors (1).

210221000002099 is an equidigital number, since it uses as much as digits as its factorization.

210221000002099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 210221000002099 in words is "two hundred ten trillion, two hundred twenty-one billion, two thousand, ninety-nine".