12231121330 has 32 divisors (see below), whose sum is σ = 22154958144. Its totient is φ = 4861670976.

The previous prime is 12231121307. The next prime is 12231121333. The reversal of 12231121330 is 3312113221.

It is a junction number, because it is equal to n+sod(n) for n = 12231121298 and 12231121307.

It is not an unprimeable number, because it can be changed into a prime (12231121333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1049797 + ... + 1061383.

It is an arithmetic number, because the mean of its divisors is an integer number (692342442).

Almost surely, 2^12231121330 is an apocalyptic number.

12231121330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12231121330 is a deficient number, since it is larger than the sum of its proper divisors (9923836814).

12231121330 is a wasteful number, since it uses less digits than its factorization.

12231121330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12250.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12231121330 its reverse (3312113221), we get a palindrome (15543234551).

It can be divided in two parts, 122311 and 21330, that added together give a square (143641 = 379²).

The spelling of 12231121330 in words is "twelve billion, two hundred thirty-one million, one hundred twenty-one thousand, three hundred thirty".