13165222 has 12 divisors (see below), whose sum is σ = 22972140. Its totient is φ = 5642196.

The previous prime is 13165213. The next prime is 13165241. The reversal of 13165222 is 22256131.

It is a junction number, because it is equal to n+sod(n) for n = 13165193 and 13165202.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 67072 + ... + 67267.

It is an arithmetic number, because the mean of its divisors is an integer number (1914345).

Almost surely, 2^13165222 is an apocalyptic number.

13165222 is a deficient number, since it is larger than the sum of its proper divisors (9806918).

13165222 is a wasteful number, since it uses less digits than its factorization.

13165222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134355 (or 134348 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 13165222 is about 3628.3911035058. The cubic root of 13165222 is about 236.1254121329.

Subtracting 13165222 from its reverse (22256131), we obtain a palindrome (9090909).

The spelling of 13165222 in words is "thirteen million, one hundred sixty-five thousand, two hundred twenty-two".