12142232012440 has 64 divisors (see below), whose sum is σ = 28760532652800. Its totient is φ = 4600848511872.

The previous prime is 12142232012359. The next prime is 12142232012479. The reversal of 12142232012440 is 4421023224121.

It is a junction number, because it is equal to n+sod(n) for n = 12142232012399 and 12142232012408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7702309 + ... + 9143851.

It is an arithmetic number, because the mean of its divisors is an integer number (449383322700).

Almost surely, 2^{12142232012440} is an apocalyptic number.

12142232012440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12142232012440 is an abundant number, since it is smaller than the sum of its proper divisors (16618300640360).

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

12142232012440 is a wasteful number, since it uses less digits than its factorization.

12142232012440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452656 (or 1452652 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 12142232012440 its reverse (4421023224121), we get a palindrome (16563255236561).

The spelling of 12142232012440 in words is "twelve trillion, one hundred forty-two billion, two hundred thirty-two million, twelve thousand, four hundred forty".