12003211444 has 24 divisors (see below), whose sum is σ = 24075228800. Its totient is φ = 5129489376.

The previous prime is 12003211351. The next prime is 12003211541. The reversal of 12003211444 is 44411230021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 604392 + ... + 623935.

Almost surely, 2^12003211444 is an apocalyptic number.

12003211444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12003211444 is an abundant number, since it is smaller than the sum of its proper divisors (12072017356).

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

12003211444 is a wasteful number, since it uses less digits than its factorization.

12003211444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228687 (or 1228685 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 12003211444 its reverse (44411230021), we get a palindrome (56414441465).

The spelling of 12003211444 in words is "twelve billion, three million, two hundred eleven thousand, four hundred forty-four".