12241443421550 has 144 divisors (see below), whose sum is σ = 28072080178128. Its totient is φ = 3946297420800.

The previous prime is 12241443421547. The next prime is 12241443421577. The reversal of 12241443421550 is 5512434414221.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 42380717 + ... + 42668583.

It is an arithmetic number, because the mean of its divisors is an integer number (194945001237).

Almost surely, 2^{12241443421550} is an apocalyptic number.

12241443421550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12241443421550 is an abundant number, since it is smaller than the sum of its proper divisors (15830636756578).

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

12241443421550 is a wasteful number, since it uses less digits than its factorization.

12241443421550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288931 (or 288919 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 38.

Adding to 12241443421550 its reverse (5512434414221), we get a palindrome (17753877835771).

The spelling of 12241443421550 in words is "twelve trillion, two hundred forty-one billion, four hundred forty-three million, four hundred twenty-one thousand, five hundred fifty".