12254220131440 has 160 divisors (see below), whose sum is σ = 35317472287104. Its totient is φ = 3857856430080.

The previous prime is 12254220131431. The next prime is 12254220131443. The reversal of 12254220131440 is 4413102245221.

It is a super-2 number, since 2×12254220131440² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12254220131443) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 15307339 + ... + 16087978.

Almost surely, 2^{12254220131440} is an apocalyptic number.

12254220131440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12254220131440 is an abundant number, since it is smaller than the sum of its proper divisors (23063252155664).

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

12254220131440 is a wasteful number, since it uses less digits than its factorization.

12254220131440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31395395 (or 31395389 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 12254220131440 its reverse (4413102245221), we get a palindrome (16667322376661).

The spelling of 12254220131440 in words is "twelve trillion, two hundred fifty-four billion, two hundred twenty million, one hundred thirty-one thousand, four hundred forty".