12545200120 has 64 divisors (see below), whose sum is σ = 29181287520. Its totient is φ = 4850786304.

The previous prime is 12545200093. The next prime is 12545200139. The reversal of 12545200120 is 2100254521.

It is a junction number, because it is equal to n+sod(n) for n = 12545200091 and 12545200100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129244 + ... + 204436.

Almost surely, 2^12545200120 is an apocalyptic number.

12545200120 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 12545200120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14590643760).

12545200120 is an abundant number, since it is smaller than the sum of its proper divisors (16636087400).

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

12545200120 is a wasteful number, since it uses less digits than its factorization.

12545200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75344 (or 75340 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 12545200120 its reverse (2100254521), we get a palindrome (14645454641).

The spelling of 12545200120 in words is "twelve billion, five hundred forty-five million, two hundred thousand, one hundred twenty".