13122211 has 2 divisors, whose sum is σ = 13122212. Its totient is φ = 13122210.

The previous prime is 13122191. The next prime is 13122227. The reversal of 13122211 is 11222131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13122211 - 2¹⁵ = 13089443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13122191 and 13122200.

It is not a weakly prime, because it can be changed into another prime (13122251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561105 + 6561106.

It is an arithmetic number, because the mean of its divisors is an integer number (6561106).

Almost surely, 2^13122211 is an apocalyptic number.

13122211 is a deficient number, since it is larger than the sum of its proper divisors (1).

13122211 is an equidigital number, since it uses as much as digits as its factorization.

13122211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24, while the sum is 13.

The square root of 13122211 is about 3622.4592475278. The cubic root of 13122211 is about 235.8679897071.

Adding to 13122211 its reverse (11222131), we get a palindrome (24344342).

The spelling of 13122211 in words is "thirteen million, one hundred twenty-two thousand, two hundred eleven".