13221122343 has 32 divisors (see below), whose sum is σ = 21928257792. Its totient is φ = 6961344000.

The previous prime is 13221122339. The next prime is 13221122351. The reversal of 13221122343 is 34322112231.

It is not a de Polignac number, because 13221122343 - 2² = 13221122339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221122353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 899133 + ... + 913718.

It is an arithmetic number, because the mean of its divisors is an integer number (685258056).

Almost surely, 2^13221122343 is an apocalyptic number.

13221122343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13221122343 is a deficient number, since it is larger than the sum of its proper divisors (8707135449).

13221122343 is a wasteful number, since it uses less digits than its factorization.

13221122343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812895.

The product of its digits is 1728, while the sum is 24.

Adding to 13221122343 its reverse (34322112231), we get a palindrome (47543234574).

The spelling of 13221122343 in words is "thirteen billion, two hundred twenty-one million, one hundred twenty-two thousand, three hundred forty-three".