12140144412 has 72 divisors (see below), whose sum is σ = 31258406928. Its totient is φ = 3664404480.

The previous prime is 12140144369. The next prime is 12140144519. The reversal of 12140144412 is 21444104121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 356898 + ... + 389430.

Almost surely, 2^12140144412 is an apocalyptic number.

12140144412 is a gapful number since it is divisible by the number (12) 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 12140144412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15629203464).

12140144412 is an abundant number, since it is smaller than the sum of its proper divisors (19118262516).

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

12140144412 is a wasteful number, since it uses less digits than its factorization.

12140144412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32819 (or 32806 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 12140144412 its reverse (21444104121), we get a palindrome (33584248533).

The spelling of 12140144412 in words is "twelve billion, one hundred forty million, one hundred forty-four thousand, four hundred twelve".