12140240412 has 12 divisors (see below), whose sum is σ = 28327227656. Its totient is φ = 4046746800.

The previous prime is 12140240381. The next prime is 12140240471. The reversal of 12140240412 is 21404204121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×12140240412² (a number of 21 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 505843339 + ... + 505843362.

Almost surely, 2^12140240412 is an apocalyptic number.

12140240412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12140240412 is an abundant number, since it is smaller than the sum of its proper divisors (16186987244).

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

12140240412 is a wasteful number, since it uses less digits than its factorization.

12140240412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011686708 (or 1011686706 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12140240412 its reverse (21404204121), we get a palindrome (33544444533).

The spelling of 12140240412 in words is "twelve billion, one hundred forty million, two hundred forty thousand, four hundred twelve".