12644222230 has 8 divisors (see below), whose sum is σ = 22759600032. Its totient is φ = 5057688888.

The previous prime is 12644222189. The next prime is 12644222231. The reversal of 12644222230 is 3222244621.

12644222230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×12644222230³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12644222231) 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, 632211102 + ... + 632211121.

It is an arithmetic number, because the mean of its divisors is an integer number (2844950004).

Almost surely, 2^12644222230 is an apocalyptic number.

12644222230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12644222230 is a deficient number, since it is larger than the sum of its proper divisors (10115377802).

12644222230 is a wasteful number, since it uses less digits than its factorization.

12644222230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264422230.

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

Adding to 12644222230 its reverse (3222244621), we get a palindrome (15866466851).

The spelling of 12644222230 in words is "twelve billion, six hundred forty-four million, two hundred twenty-two thousand, two hundred thirty".