5313012116221 has 2 divisors, whose sum is σ = 5313012116222. Its totient is φ = 5313012116220.

The previous prime is 5313012116207. The next prime is 5313012116303. The reversal of 5313012116221 is 1226112103135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5207136067225 + 105876048996 = 2281915^2 + 325386^2 .

It is a cyclic number.

It is not a de Polignac number, because 5313012116221 - 2³¹ = 5310864632573 is a prime.

It is a super-2 number, since 2×5313012116221² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5313012116221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5313012116821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2656506058110 + 2656506058111.

It is an arithmetic number, because the mean of its divisors is an integer number (2656506058111).

Almost surely, 2^{5313012116221} is an apocalyptic number.

It is an amenable number.

5313012116221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5313012116221 is an equidigital number, since it uses as much as digits as its factorization.

5313012116221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

Adding to 5313012116221 its reverse (1226112103135), we get a palindrome (6539124219356).

The spelling of 5313012116221 in words is "five trillion, three hundred thirteen billion, twelve million, one hundred sixteen thousand, two hundred twenty-one".