210012110210321 has 2 divisors, whose sum is σ = 210012110210322. Its totient is φ = 210012110210320.

The previous prime is 210012110210317. The next prime is 210012110210327. The reversal of 210012110210321 is 123012011210012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114392950175296 + 95619160035025 = 10695464^2 + 9778505^2 .

It is a cyclic number.

It is not a de Polignac number, because 210012110210321 - 2² = 210012110210317 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 210012110210321.

It is not a weakly prime, because it can be changed into another prime (210012110210327) 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, 105006055105160 + 105006055105161.

It is an arithmetic number, because the mean of its divisors is an integer number (105006055105161).

Almost surely, 2^{210012110210321} is an apocalyptic number.

It is an amenable number.

210012110210321 is a deficient number, since it is larger than the sum of its proper divisors (1).

210012110210321 is an equidigital number, since it uses as much as digits as its factorization.

210012110210321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 210012110210321 its reverse (123012011210012), we get a palindrome (333024121420333).

The spelling of 210012110210321 in words is "two hundred ten trillion, twelve billion, one hundred ten million, two hundred ten thousand, three hundred twenty-one".