12120441054550 has 24 divisors (see below), whose sum is σ = 22797323969400. Its totient is φ = 4793702527680.

The previous prime is 12120441054523. The next prime is 12120441054583. The reversal of 12120441054550 is 5545014402121.

It is a super-2 number, since 2×12120441054550² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1361842860 + ... + 1361851759.

It is an arithmetic number, because the mean of its divisors is an integer number (949888498725).

Almost surely, 2^{12120441054550} is an apocalyptic number.

12120441054550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120441054550 is a deficient number, since it is larger than the sum of its proper divisors (10676882914850).

12120441054550 is a wasteful number, since it uses less digits than its factorization.

12120441054550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2723694720 (or 2723694715 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 34.

Adding to 12120441054550 its reverse (5545014402121), we get a palindrome (17665455456671).

The spelling of 12120441054550 in words is "twelve trillion, one hundred twenty billion, four hundred forty-one million, fifty-four thousand, five hundred fifty".