12242143241440 has 96 divisors (see below), whose sum is σ = 33291584202240. Its totient is φ = 4167109753344.

The previous prime is 12242143241413. The next prime is 12242143241473. The reversal of 12242143241440 is 4414234124221.

It is a super-2 number, since 2×12242143241440² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12242143241396 and 12242143241405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39162612 + ... + 39473971.

It is an arithmetic number, because the mean of its divisors is an integer number (346787335440).

Almost surely, 2^{12242143241440} is an apocalyptic number.

12242143241440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12242143241440 is an abundant number, since it is smaller than the sum of its proper divisors (21049440960800).

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

12242143241440 is a wasteful number, since it uses less digits than its factorization.

12242143241440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78636744 (or 78636736 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 34.

Adding to 12242143241440 its reverse (4414234124221), we get a palindrome (16656377365661).

The spelling of 12242143241440 in words is "twelve trillion, two hundred forty-two billion, one hundred forty-three million, two hundred forty-one thousand, four hundred forty".