12133221030 has 96 divisors (see below), whose sum is σ = 36208171584. Its totient is φ = 2761371648.

The previous prime is 12133221029. The next prime is 12133221053. The reversal of 12133221030 is 3012233121.

12133221030 is a `hidden beast` number, since 121 + 332 + 210 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12133220994 and 12133221012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 105462 + ... + 188118.

It is an arithmetic number, because the mean of its divisors is an integer number (377168454).

Almost surely, 2^12133221030 is an apocalyptic number.

12133221030 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 12133221030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18104085792).

12133221030 is an abundant number, since it is smaller than the sum of its proper divisors (24074950554).

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

12133221030 is a wasteful number, since it uses less digits than its factorization.

12133221030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82910 (or 82907 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12133221030 its reverse (3012233121), we get a palindrome (15145454151).

The spelling of 12133221030 in words is "twelve billion, one hundred thirty-three million, two hundred twenty-one thousand, thirty".