12444544220 has 48 divisors (see below), whose sum is σ = 27286314048. Its totient is φ = 4758504960.

The previous prime is 12444544163. The next prime is 12444544237. The reversal of 12444544220 is 2244544421.

12444544220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 848792 + ... + 863328.

It is an arithmetic number, because the mean of its divisors is an integer number (568464876).

Almost surely, 2^12444544220 is an apocalyptic number.

12444544220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12444544220 is an abundant number, since it is smaller than the sum of its proper divisors (14841769828).

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

12444544220 is a wasteful number, since it uses less digits than its factorization.

12444544220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16430 (or 16428 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 32.

The spelling of 12444544220 in words is "twelve billion, four hundred forty-four million, five hundred forty-four thousand, two hundred twenty".