13221322117 has 2 divisors, whose sum is σ = 13221322118. Its totient is φ = 13221322116.

The previous prime is 13221322087. The next prime is 13221322133. The reversal of 13221322117 is 71122312231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13197644161 + 23677956 = 114881^2 + 4866^2 .

It is a cyclic number.

It is not a de Polignac number, because 13221322117 - 2⁷ = 13221321989 is a prime.

It is a super-3 number, since 3×13221322117³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13221322091 and 13221322100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13221322157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610661058 + 6610661059.

It is an arithmetic number, because the mean of its divisors is an integer number (6610661059).

Almost surely, 2^13221322117 is an apocalyptic number.

It is an amenable number.

13221322117 is a deficient number, since it is larger than the sum of its proper divisors (1).

13221322117 is an equidigital number, since it uses as much as digits as its factorization.

13221322117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 25.

Adding to 13221322117 its reverse (71122312231), we get a palindrome (84343634348).

The spelling of 13221322117 in words is "thirteen billion, two hundred twenty-one million, three hundred twenty-two thousand, one hundred seventeen".