210221200039 has 2 divisors, whose sum is σ = 210221200040. Its totient is φ = 210221200038.

The previous prime is 210221200003. The next prime is 210221200043. The reversal of 210221200039 is 930002122012.

210221200039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210221200039 - 2²¹ = 210219102887 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210221199992 and 210221200019.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210221200639) 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, 105110600019 + 105110600020.

It is an arithmetic number, because the mean of its divisors is an integer number (105110600020).

Almost surely, 2^210221200039 is an apocalyptic number.

210221200039 is a deficient number, since it is larger than the sum of its proper divisors (1).

210221200039 is an equidigital number, since it uses as much as digits as its factorization.

210221200039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 210221200039 in words is "two hundred ten billion, two hundred twenty-one million, two hundred thousand, thirty-nine".