12226551563 has 4 divisors (see below), whose sum is σ = 12226799808. Its totient is φ = 12226303320.

The previous prime is 12226551517. The next prime is 12226551581. The reversal of 12226551563 is 36515562221.

12226551563 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, and also an emirpimes, since its reverse is a distinct semiprime: 36515562221 = 613 ⋅59568617.

It is a cyclic number.

It is not a de Polignac number, because 12226551563 - 2²⁴ = 12209774347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12226551763) 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, 22523 + ... + 157988.

It is an arithmetic number, because the mean of its divisors is an integer number (3056699952).

Almost surely, 2^12226551563 is an apocalyptic number.

12226551563 is a deficient number, since it is larger than the sum of its proper divisors (248245).

12226551563 is an equidigital number, since it uses as much as digits as its factorization.

12226551563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248244.

The product of its digits is 108000, while the sum is 38.

The spelling of 12226551563 in words is "twelve billion, two hundred twenty-six million, five hundred fifty-one thousand, five hundred sixty-three".