210122200999 has 2 divisors, whose sum is σ = 210122201000. Its totient is φ = 210122200998.

The previous prime is 210122200979. The next prime is 210122201021. The reversal of 210122200999 is 999002221012.

210122200999 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 210122200999 - 2⁹ = 210122200487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210122200979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105061100499 + 105061100500.

It is an arithmetic number, because the mean of its divisors is an integer number (105061100500).

Almost surely, 2^210122200999 is an apocalyptic number.

210122200999 is a deficient number, since it is larger than the sum of its proper divisors (1).

210122200999 is an equidigital number, since it uses as much as digits as its factorization.

210122200999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 37.

The spelling of 210122200999 in words is "two hundred ten billion, one hundred twenty-two million, two hundred thousand, nine hundred ninety-nine".