12442220412 has 12 divisors (see below), whose sum is σ = 29031847656. Its totient is φ = 4147406800.

The previous prime is 12442220393. The next prime is 12442220437. The reversal of 12442220412 is 21402224421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518425839 + ... + 518425862.

It is an arithmetic number, because the mean of its divisors is an integer number (2419320638).

Almost surely, 2^12442220412 is an apocalyptic number.

12442220412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12442220412 is an abundant number, since it is smaller than the sum of its proper divisors (16589627244).

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

12442220412 is a wasteful number, since it uses less digits than its factorization.

12442220412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036851708 (or 1036851706 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 12442220412 its reverse (21402224421), we get a palindrome (33844444833).

The spelling of 12442220412 in words is "twelve billion, four hundred forty-two million, two hundred twenty thousand, four hundred twelve".