12551244120 has 96 divisors (see below), whose sum is σ = 41005336320. Its totient is φ = 3329456640.

The previous prime is 12551244119. The next prime is 12551244127. The reversal of 12551244120 is 2144215521.

It is a happy number.

12551244120 is a `hidden beast` number, since 1 + 25 + 512 + 4 + 4 + 120 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12551244127) 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, 22509 + ... + 160028.

It is an arithmetic number, because the mean of its divisors is an integer number (427138920).

Almost surely, 2^12551244120 is an apocalyptic number.

12551244120 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 12551244120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20502668160).

12551244120 is an abundant number, since it is smaller than the sum of its proper divisors (28454092200).

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

12551244120 is a wasteful number, since it uses less digits than its factorization.

12551244120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182745 (or 182738 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 12551244120 its reverse (2144215521), we get a palindrome (14695459641).

The spelling of 12551244120 in words is "twelve billion, five hundred fifty-one million, two hundred forty-four thousand, one hundred twenty".