12112252500 has 120 divisors (see below), whose sum is σ = 36068554368. Its totient is φ = 3161120000.

The previous prime is 12112252489. The next prime is 12112252501. The reversal of 12112252500 is 525221121.

12112252500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112252501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 335320 + ... + 369680.

Almost surely, 2^12112252500 is an apocalyptic number.

12112252500 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 12112252500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18034277184).

12112252500 is an abundant number, since it is smaller than the sum of its proper divisors (23956301868).

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

12112252500 is a wasteful number, since it uses less digits than its factorization.

12112252500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34435 (or 34418 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 12112252500 its reverse (525221121), we get a palindrome (12637473621).

The spelling of 12112252500 in words is "twelve billion, one hundred twelve million, two hundred fifty-two thousand, five hundred".