12023221204240 has 80 divisors (see below), whose sum is σ = 28218290342400. Its totient is φ = 4763993264640.

The previous prime is 12023221204187. The next prime is 12023221204259. The reversal of 12023221204240 is 4240212232021.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3000445 + ... + 5748835.

It is an arithmetic number, because the mean of its divisors is an integer number (352728629280).

Almost surely, 2^{12023221204240} is an apocalyptic number.

12023221204240 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 12023221204240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14109145171200).

12023221204240 is an abundant number, since it is smaller than the sum of its proper divisors (16195069138160).

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

12023221204240 is a wasteful number, since it uses less digits than its factorization.

12023221204240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2748920 (or 2748914 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 12023221204240 its reverse (4240212232021), we get a palindrome (16263433436261).

The spelling of 12023221204240 in words is "twelve trillion, twenty-three billion, two hundred twenty-one million, two hundred four thousand, two hundred forty".