13221344334 has 32 divisors (see below), whose sum is σ = 30100771584. Its totient is φ = 3832273280.

The previous prime is 13221344321. The next prime is 13221344341. The reversal of 13221344334 is 43344312231.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4353339 + ... + 4356374.

It is an arithmetic number, because the mean of its divisors is an integer number (940649112).

Almost surely, 2^13221344334 is an apocalyptic number.

13221344334 is an abundant number, since it is smaller than the sum of its proper divisors (16879427250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13221344334 is a wasteful number, since it uses less digits than its factorization.

13221344334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8709752.

The product of its digits is 20736, while the sum is 30.

Adding to 13221344334 its reverse (43344312231), we get a palindrome (56565656565).

The spelling of 13221344334 in words is "thirteen billion, two hundred twenty-one million, three hundred forty-four thousand, three hundred thirty-four".