13115222 has 8 divisors (see below), whose sum is σ = 19713456. Its totient is φ = 6544072.

The previous prime is 13115197. The next prime is 13115227. The reversal of 13115222 is 22251131.

It is a happy number.

13115222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13115222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13115227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5513 + ... + 7524.

It is an arithmetic number, because the mean of its divisors is an integer number (2464182).

Almost surely, 2^13115222 is an apocalyptic number.

13115222 is a deficient number, since it is larger than the sum of its proper divisors (6598234).

13115222 is a wasteful number, since it uses less digits than its factorization.

13115222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13542.

The product of its digits is 120, while the sum is 17.

The square root of 13115222 is about 3621.4944429061. The cubic root of 13115222 is about 235.8261071785.

Adding to 13115222 its reverse (22251131), we get a palindrome (35366353).

The spelling of 13115222 in words is "thirteen million, one hundred fifteen thousand, two hundred twenty-two".