12231121121130 has 128 divisors (see below), whose sum is σ = 30877826144256. Its totient is φ = 3096413798400.

The previous prime is 12231121121123. The next prime is 12231121121137. The reversal of 12231121121130 is 3112112113221.

It is an interprime number because it is at equal distance from previous prime (12231121121123) and next prime (12231121121137).

It is a junction number, because it is equal to n+sod(n) for n = 12231121121097 and 12231121121106.

It is not an unprimeable number, because it can be changed into a prime (12231121121137) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 457447122 + ... + 457473858.

It is an arithmetic number, because the mean of its divisors is an integer number (241233016752).

Almost surely, 2^{12231121121130} is an apocalyptic number.

12231121121130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12231121121130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15438913072128).

12231121121130 is an abundant number, since it is smaller than the sum of its proper divisors (18646705023126).

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

12231121121130 is a wasteful number, since it uses less digits than its factorization.

12231121121130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36112.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 12231121121130 its reverse (3112112113221), we get a palindrome (15343233234351).

The spelling of 12231121121130 in words is "twelve trillion, two hundred thirty-one billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred thirty".