13221224434 has 16 divisors (see below), whose sum is σ = 21644457120. Its totient is φ = 6006945760.

The previous prime is 13221224407. The next prime is 13221224437. The reversal of 13221224434 is 43442212231.

It is not an unprimeable number, because it can be changed into a prime (13221224437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84619 + ... + 183310.

It is an arithmetic number, because the mean of its divisors is an integer number (1352778570).

Almost surely, 2^13221224434 is an apocalyptic number.

13221224434 is a deficient number, since it is larger than the sum of its proper divisors (8423232686).

13221224434 is a wasteful number, since it uses less digits than its factorization.

13221224434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270185.

The product of its digits is 9216, while the sum is 28.

Adding to 13221224434 its reverse (43442212231), we get a palindrome (56663436665).

The spelling of 13221224434 in words is "thirteen billion, two hundred twenty-one million, two hundred twenty-four thousand, four hundred thirty-four".