13222115 has 16 divisors (see below), whose sum is σ = 16670880. Its totient is φ = 10053120.

The previous prime is 13222109. The next prime is 13222123. The reversal of 13222115 is 51122231.

It is a happy number.

It is not a de Polignac number, because 13222115 - 2¹² = 13218019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13222093 and 13222102.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 9035 + ... + 10395.

It is an arithmetic number, because the mean of its divisors is an integer number (1041930).

Almost surely, 2^13222115 is an apocalyptic number.

13222115 is a deficient number, since it is larger than the sum of its proper divisors (3448765).

13222115 is a wasteful number, since it uses less digits than its factorization.

13222115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462.

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

The square root of 13222115 is about 3636.2226279479. Note that the first 3 decimals coincide. The cubic root of 13222115 is about 236.4650589706.

Adding to 13222115 its reverse (51122231), we get a palindrome (64344346).

The spelling of 13222115 in words is "thirteen million, two hundred twenty-two thousand, one hundred fifteen".