12512000000 has 336 divisors, whose sum is σ = 34551120240. Its totient is φ = 4505600000.

The previous prime is 12511999991. The next prime is 12512000003. The reversal of 12512000000 is 21521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512000003) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 543999989 + ... + 544000011.

It is an arithmetic number, because the mean of its divisors is an integer number (102830715).

Almost surely, 2^12512000000 is an apocalyptic number.

12512000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12512000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17275560120).

12512000000 is an abundant number, since it is smaller than the sum of its proper divisors (22039120240).

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

12512000000 is an frugal number, since it uses more digits than its factorization.

12512000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

Adding to 12512000000 its reverse (21521), we get a palindrome (12512021521).

The spelling of 12512000000 in words is "twelve billion, five hundred twelve million", and thus it is an aban number.