12251113324240 has 160 divisors (see below), whose sum is σ = 32826581821440. Its totient is φ = 4165124620800.

The previous prime is 12251113324237. The next prime is 12251113324259. The reversal of 12251113324240 is 4242331115221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96698535 + ... + 96825145.

It is an arithmetic number, because the mean of its divisors is an integer number (205166136384).

Almost surely, 2^{12251113324240} is an apocalyptic number.

12251113324240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12251113324240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16413290910720).

12251113324240 is an abundant number, since it is smaller than the sum of its proper divisors (20575468497200).

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

12251113324240 is a wasteful number, since it uses less digits than its factorization.

12251113324240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128081 (or 128075 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 12251113324240 its reverse (4242331115221), we get a palindrome (16493444439461).

The spelling of 12251113324240 in words is "twelve trillion, two hundred fifty-one billion, one hundred thirteen million, three hundred twenty-four thousand, two hundred forty".