12331132011221 has 8 divisors (see below), whose sum is σ = 13162957819200. Its totient is φ = 11517588089280.

The previous prime is 12331132011203. The next prime is 12331132011241. The reversal of 12331132011221 is 12211023113321.

It is a happy number.

12331132011221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12331132011221 - 2⁶ = 12331132011157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331132011241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4570470116 + ... + 4570472813.

It is an arithmetic number, because the mean of its divisors is an integer number (1645369727400).

Almost surely, 2^{12331132011221} is an apocalyptic number.

It is an amenable number.

12331132011221 is a deficient number, since it is larger than the sum of its proper divisors (831825807979).

12331132011221 is an equidigital number, since it uses as much as digits as its factorization.

12331132011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9140943019.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12331132011221 its reverse (12211023113321), we get a palindrome (24542155124542).

The spelling of 12331132011221 in words is "twelve trillion, three hundred thirty-one billion, one hundred thirty-two million, eleven thousand, two hundred twenty-one".