12042234672 has 80 divisors (see below), whose sum is σ = 33535874400. Its totient is φ = 3701569536.

The previous prime is 12042234671. The next prime is 12042234691. The reversal of 12042234672 is 27643224021.

It is not an unprimeable number, because it can be changed into a prime (12042234671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 645378 + ... + 663774.

It is an arithmetic number, because the mean of its divisors is an integer number (419198430).

Almost surely, 2^12042234672 is an apocalyptic number.

12042234672 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 12042234672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16767937200).

12042234672 is an abundant number, since it is smaller than the sum of its proper divisors (21493639728).

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

12042234672 is a wasteful number, since it uses less digits than its factorization.

12042234672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19470 (or 19464 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

Adding to 12042234672 its reverse (27643224021), we get a palindrome (39685458693).

The spelling of 12042234672 in words is "twelve billion, forty-two million, two hundred thirty-four thousand, six hundred seventy-two".