210001212913 has 2 divisors, whose sum is σ = 210001212914. Its totient is φ = 210001212912.

The previous prime is 210001212907. The next prime is 210001212917. The reversal of 210001212913 is 319212100012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208655276944 + 1345935969 = 456788^2 + 36687^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210001212913 is a prime.

It is not a weakly prime, because it can be changed into another prime (210001212917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105000606456 + 105000606457.

It is an arithmetic number, because the mean of its divisors is an integer number (105000606457).

Almost surely, 2^210001212913 is an apocalyptic number.

It is an amenable number.

210001212913 is a deficient number, since it is larger than the sum of its proper divisors (1).

210001212913 is an equidigital number, since it uses as much as digits as its factorization.

210001212913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 210001212913 its reverse (319212100012), we get a palindrome (529213312925).

The spelling of 210001212913 in words is "two hundred ten billion, one million, two hundred twelve thousand, nine hundred thirteen".