11310003122221 has 2 divisors, whose sum is σ = 11310003122222. Its totient is φ = 11310003122220.

The previous prime is 11310003122191. The next prime is 11310003122251. The reversal of 11310003122221 is 12222130001311.

It is a balanced prime because it is at equal distance from previous prime (11310003122191) and next prime (11310003122251).

It can be written as a sum of positive squares in only one way, i.e., 9467498224900 + 1842504897321 = 3076930^2 + 1357389^2 .

It is a cyclic number.

It is not a de Polignac number, because 11310003122221 - 2²⁹ = 11309466251309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11310003122251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5655001561110 + 5655001561111.

It is an arithmetic number, because the mean of its divisors is an integer number (5655001561111).

Almost surely, 2^{11310003122221} is an apocalyptic number.

It is an amenable number.

11310003122221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11310003122221 is an equidigital number, since it uses as much as digits as its factorization.

11310003122221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 11310003122221 its reverse (12222130001311), we get a palindrome (23532133123532).

The spelling of 11310003122221 in words is "eleven trillion, three hundred ten billion, three million, one hundred twenty-two thousand, two hundred twenty-one".