210002000121659 has 2 divisors, whose sum is σ = 210002000121660. Its totient is φ = 210002000121658.

The previous prime is 210002000121649. The next prime is 210002000121701. The reversal of 210002000121659 is 956121000200012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210002000121659 - 2¹² = 210002000117563 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (210002000121649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105001000060829 + 105001000060830.

It is an arithmetic number, because the mean of its divisors is an integer number (105001000060830).

Almost surely, 2^{210002000121659} is an apocalyptic number.

210002000121659 is a deficient number, since it is larger than the sum of its proper divisors (1).

210002000121659 is an equidigital number, since it uses as much as digits as its factorization.

210002000121659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 210002000121659 in words is "two hundred ten trillion, two billion, one hundred twenty-one thousand, six hundred fifty-nine".