12422143520440 has 16 divisors (see below), whose sum is σ = 27949822921080. Its totient is φ = 4968857408160.

The previous prime is 12422143520333. The next prime is 12422143520509. The reversal of 12422143520440 is 4402534122421.

12422143520440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12422143520396 and 12422143520405.

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, 155276793966 + ... + 155276794045.

Almost surely, 2^{12422143520440} is an apocalyptic number.

12422143520440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12422143520440 is an abundant number, since it is smaller than the sum of its proper divisors (15527679400640).

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

12422143520440 is a wasteful number, since it uses less digits than its factorization.

12422143520440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310553588022 (or 310553588018 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 12422143520440 its reverse (4402534122421), we get a palindrome (16824677642861).

The spelling of 12422143520440 in words is "twelve trillion, four hundred twenty-two billion, one hundred forty-three million, five hundred twenty thousand, four hundred forty".