12001123122231 has 8 divisors (see below), whose sum is σ = 16046827518960. Its totient is φ = 7978083736832.

The previous prime is 12001123122217. The next prime is 12001123122283. The reversal of 12001123122231 is 13222132110021.

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 12001123122231 - 2¹⁷ = 12001122991159 is a prime.

It is a super-2 number, since 2×12001123122231² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12001123122198 and 12001123122207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001123122211) 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, 5666251596 + ... + 5666253713.

It is an arithmetic number, because the mean of its divisors is an integer number (2005853439870).

Almost surely, 2^{12001123122231} is an apocalyptic number.

12001123122231 is a deficient number, since it is larger than the sum of its proper divisors (4045704396729).

12001123122231 is a wasteful number, since it uses less digits than its factorization.

12001123122231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11332505665.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12001123122231 its reverse (13222132110021), we get a palindrome (25223255232252).

The spelling of 12001123122231 in words is "twelve trillion, one billion, one hundred twenty-three million, one hundred twenty-two thousand, two hundred thirty-one".