210133221173 has 2 divisors, whose sum is σ = 210133221174. Its totient is φ = 210133221172.

The previous prime is 210133221167. The next prime is 210133221229. The reversal of 210133221173 is 371122331012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186729422884 + 23403798289 = 432122^2 + 152983^2 .

It is a cyclic number.

It is not a de Polignac number, because 210133221173 - 2²⁸ = 209864785717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210133221113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105066610586 + 105066610587.

It is an arithmetic number, because the mean of its divisors is an integer number (105066610587).

Almost surely, 2^210133221173 is an apocalyptic number.

It is an amenable number.

210133221173 is a deficient number, since it is larger than the sum of its proper divisors (1).

210133221173 is an equidigital number, since it uses as much as digits as its factorization.

210133221173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

Adding to 210133221173 its reverse (371122331012), we get a palindrome (581255552185).

The spelling of 210133221173 in words is "two hundred ten billion, one hundred thirty-three million, two hundred twenty-one thousand, one hundred seventy-three".