13222109 has 2 divisors, whose sum is σ = 13222110. Its totient is φ = 13222108.

The previous prime is 13222103. The next prime is 13222123. The reversal of 13222109 is 90122231.

13222109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11323225 + 1898884 = 3365^2 + 1378^2 .

It is a cyclic number.

It is not a de Polignac number, because 13222109 - 2⁴ = 13222093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13222103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6611054 + 6611055.

It is an arithmetic number, because the mean of its divisors is an integer number (6611055).

Almost surely, 2^13222109 is an apocalyptic number.

It is an amenable number.

13222109 is a deficient number, since it is larger than the sum of its proper divisors (1).

13222109 is an equidigital number, since it uses as much as digits as its factorization.

13222109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 13222109 is about 3636.2218029158. The cubic root of 13222109 is about 236.4650232025.

It can be divided in two parts, 13222 and 109, that added together give a palindrome (13331).

The spelling of 13222109 in words is "thirteen million, two hundred twenty-two thousand, one hundred nine".