12113122032221 has 8 divisors (see below), whose sum is σ = 13843618075584. Its totient is φ = 10382638498560.

The previous prime is 12113122032199. The next prime is 12113122032259. The reversal of 12113122032221 is 12223022131121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12113122032221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12113122032721) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 951575 + ... + 5013156.

It is an arithmetic number, because the mean of its divisors is an integer number (1730452259448).

Almost surely, 2^{12113122032221} is an apocalyptic number.

It is an amenable number.

12113122032221 is a deficient number, since it is larger than the sum of its proper divisors (1730496043363).

12113122032221 is an equidigital number, since it uses as much as digits as its factorization.

12113122032221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6254851.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 12113122032221 its reverse (12223022131121), we get a palindrome (24336144163342).

The spelling of 12113122032221 in words is "twelve trillion, one hundred thirteen billion, one hundred twenty-two million, thirty-two thousand, two hundred twenty-one".