13223122 has 24 divisors (see below), whose sum is σ = 22058316. Its totient is φ = 5940000.

The previous prime is 13223087. The next prime is 13223123. The reversal of 13223122 is 22132231.

It can be written as a sum of positive squares in 2 ways, for example, as 12467961 + 755161 = 3531^2 + 869^2 .

It is a hoax number, since the sum of its digits (16) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 13223096 and 13223105.

It is not an unprimeable number, because it can be changed into a prime (13223123) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 24172 + ... + 24712.

Almost surely, 2^13223122 is an apocalyptic number.

13223122 is a deficient number, since it is larger than the sum of its proper divisors (8835194).

13223122 is a wasteful number, since it uses less digits than its factorization.

13223122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 655 counting only the distinct ones).

The product of its digits is 144, while the sum is 16.

The square root of 13223122 is about 3636.3610931809. The cubic root of 13223122 is about 236.4710619001.

Adding to 13223122 its reverse (22132231), we get a palindrome (35355353).

It can be divided in two parts, 1322 and 3122, that added together give a palindrome (4444).

The spelling of 13223122 in words is "thirteen million, two hundred twenty-three thousand, one hundred twenty-two".