12231040442012 has 96 divisors (see below), whose sum is σ = 25659562005504. Its totient is φ = 4987728345600.

The previous prime is 12231040442003. The next prime is 12231040442021. The reversal of 12231040442012 is 21024404013221.

It is an interprime number because it is at equal distance from previous prime (12231040442003) and next prime (12231040442021).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98910062 + ... + 99033642.

It is an arithmetic number, because the mean of its divisors is an integer number (267287104224).

Almost surely, 2^{12231040442012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12231040442012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12829781002752).

12231040442012 is an abundant number, since it is smaller than the sum of its proper divisors (13428521563492).

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

12231040442012 is a wasteful number, since it uses less digits than its factorization.

12231040442012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124419 (or 124417 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 12231040442012 its reverse (21024404013221), we get a palindrome (33255444455233).

The spelling of 12231040442012 in words is "twelve trillion, two hundred thirty-one billion, forty million, four hundred forty-two thousand, twelve".