12225449543 has 4 divisors (see below), whose sum is σ = 12259504080. Its totient is φ = 12191395008.

The previous prime is 12225449519. The next prime is 12225449563. The reversal of 12225449543 is 34594452221.

12225449543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12225449543 - 2¹⁰ = 12225448519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12225449543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12225449563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17026730 + ... + 17027447.

It is an arithmetic number, because the mean of its divisors is an integer number (3064876020).

Almost surely, 2^12225449543 is an apocalyptic number.

12225449543 is a deficient number, since it is larger than the sum of its proper divisors (34054537).

12225449543 is an equidigital number, since it uses as much as digits as its factorization.

12225449543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34054536.

The product of its digits is 345600, while the sum is 41.

The spelling of 12225449543 in words is "twelve billion, two hundred twenty-five million, four hundred forty-nine thousand, five hundred forty-three".