13220109 has 24 divisors (see below), whose sum is σ = 21944832. Its totient is φ = 7512480.

The previous prime is 13220099. The next prime is 13220117. The reversal of 13220109 is 90102231.

It is a happy number.

13220109 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13220109 - 2¹³ = 13211917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13220091 and 13220100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13579 + ... + 14519.

It is an arithmetic number, because the mean of its divisors is an integer number (914368).

Almost surely, 2^13220109 is an apocalyptic number.

It is an amenable number.

13220109 is a deficient number, since it is larger than the sum of its proper divisors (8724723).

13220109 is a wasteful number, since it uses less digits than its factorization.

13220109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177 (or 1174 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 13220109 is about 3635.9467817888. The cubic root of 13220109 is about 236.4530998930.

The spelling of 13220109 in words is "thirteen million, two hundred twenty thousand, one hundred nine".