12112441240 has 128 divisors (see below), whose sum is σ = 29251031040. Its totient is φ = 4502969856.

The previous prime is 12112441207. The next prime is 12112441247. The reversal of 12112441240 is 4214421121.

It is a super-2 number, since 2×12112441240² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112441247) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 8821194 + ... + 8822566.

It is an arithmetic number, because the mean of its divisors is an integer number (228523680).

Almost surely, 2^12112441240 is an apocalyptic number.

12112441240 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 12112441240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14625515520).

12112441240 is an abundant number, since it is smaller than the sum of its proper divisors (17138589800).

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

12112441240 is a wasteful number, since it uses less digits than its factorization.

12112441240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673 (or 1669 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 12112441240 its reverse (4214421121), we get a palindrome (16326862361).

The spelling of 12112441240 in words is "twelve billion, one hundred twelve million, four hundred forty-one thousand, two hundred forty".