12213130323121 has 32 divisors (see below), whose sum is σ = 15193691222528. Its totient is φ = 9559099630080.

The previous prime is 12213130323077. The next prime is 12213130323133. The reversal of 12213130323121 is 12132303131221.

It is not a de Polignac number, because 12213130323121 - 2⁹ = 12213130322609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12213130323721) 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 31 ways as a sum of consecutive naturals, for example, 8087191 + ... + 9477811.

It is an arithmetic number, because the mean of its divisors is an integer number (474802850704).

Almost surely, 2^{12213130323121} is an apocalyptic number.

It is an amenable number.

12213130323121 is a deficient number, since it is larger than the sum of its proper divisors (2980560899407).

12213130323121 is a wasteful number, since it uses less digits than its factorization.

12213130323121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391681.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 12213130323121 its reverse (12132303131221), we get a palindrome (24345433454342).

The spelling of 12213130323121 in words is "twelve trillion, two hundred thirteen billion, one hundred thirty million, three hundred twenty-three thousand, one hundred twenty-one".