201322021213 has 2 divisors, whose sum is σ = 201322021214. Its totient is φ = 201322021212.

The previous prime is 201322021193. The next prime is 201322021217. The reversal of 201322021213 is 312120223102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182476771929 + 18845249284 = 427173^2 + 137278^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201322021213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201322021217) 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, 100661010606 + 100661010607.

It is an arithmetic number, because the mean of its divisors is an integer number (100661010607).

Almost surely, 2^201322021213 is an apocalyptic number.

It is an amenable number.

201322021213 is a deficient number, since it is larger than the sum of its proper divisors (1).

201322021213 is an equidigital number, since it uses as much as digits as its factorization.

201322021213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 201322021213 its reverse (312120223102), we get a palindrome (513442244315).

The spelling of 201322021213 in words is "two hundred one billion, three hundred twenty-two million, twenty-one thousand, two hundred thirteen".