201302323812221 has 2 divisors, whose sum is σ = 201302323812222. Its totient is φ = 201302323812220.

The previous prime is 201302323812203. The next prime is 201302323812313. The reversal of 201302323812221 is 122218323203102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196405817844196 + 4896505968025 = 14014486^2 + 2212805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201302323812221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201302323812721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100651161906110 + 100651161906111.

It is an arithmetic number, because the mean of its divisors is an integer number (100651161906111).

Almost surely, 2^{201302323812221} is an apocalyptic number.

It is an amenable number.

201302323812221 is a deficient number, since it is larger than the sum of its proper divisors (1).

201302323812221 is an equidigital number, since it uses as much as digits as its factorization.

201302323812221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 201302323812221 in words is "two hundred one trillion, three hundred two billion, three hundred twenty-three million, eight hundred twelve thousand, two hundred twenty-one".