210332211997 has 2 divisors, whose sum is σ = 210332211998. Its totient is φ = 210332211996.

The previous prime is 210332211937. The next prime is 210332212019. The reversal of 210332211997 is 799112233012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163706015236 + 46626196761 = 404606^2 + 215931^2 .

It is a cyclic number.

It is not a de Polignac number, because 210332211997 - 2¹⁵ = 210332179229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210332211937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105166105998 + 105166105999.

It is an arithmetic number, because the mean of its divisors is an integer number (105166105999).

Almost surely, 2^210332211997 is an apocalyptic number.

It is an amenable number.

210332211997 is a deficient number, since it is larger than the sum of its proper divisors (1).

210332211997 is an equidigital number, since it uses as much as digits as its factorization.

210332211997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 40.

The spelling of 210332211997 in words is "two hundred ten billion, three hundred thirty-two million, two hundred eleven thousand, nine hundred ninety-seven".