12512334220550 has 48 divisors (see below), whose sum is σ = 24170501515680. Its totient is φ = 4814949807360.

The previous prime is 12512334220537. The next prime is 12512334220553. The reversal of 12512334220550 is 5502243321521.

It is a self number, because there is not a number n which added to its sum of digits gives 12512334220550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512334220553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37832114 + ... + 38161413.

It is an arithmetic number, because the mean of its divisors is an integer number (503552114910).

Almost surely, 2^{12512334220550} is an apocalyptic number.

12512334220550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12512334220550 is a deficient number, since it is larger than the sum of its proper divisors (11658167295130).

12512334220550 is a wasteful number, since it uses less digits than its factorization.

12512334220550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75993665 (or 75993660 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 12512334220550 in words is "twelve trillion, five hundred twelve billion, three hundred thirty-four million, two hundred twenty thousand, five hundred fifty".