210111220996513 has 2 divisors, whose sum is σ = 210111220996514. Its totient is φ = 210111220996512.

The previous prime is 210111220996441. The next prime is 210111220996517. The reversal of 210111220996513 is 315699022111012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209675525951329 + 435695045184 = 14480177^2 + 660072^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210111220996513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210111220996513.

It is not a weakly prime, because it can be changed into another prime (210111220996517) 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, 105055610498256 + 105055610498257.

It is an arithmetic number, because the mean of its divisors is an integer number (105055610498257).

Almost surely, 2^{210111220996513} is an apocalyptic number.

It is an amenable number.

210111220996513 is a deficient number, since it is larger than the sum of its proper divisors (1).

210111220996513 is an equidigital number, since it uses as much as digits as its factorization.

210111220996513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 43.

The spelling of 210111220996513 in words is "two hundred ten trillion, one hundred eleven billion, two hundred twenty million, nine hundred ninety-six thousand, five hundred thirteen".