12122231130 has 48 divisors (see below), whose sum is σ = 32604628680. Its totient is φ = 3121125504.

The previous prime is 12122231129. The next prime is 12122231197. The reversal of 12122231130 is 3113222121.

It can be written as a sum of positive squares in 4 ways, for example, as 6459819129 + 5662412001 = 80373^2 + 75249^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2319657 + ... + 2324876.

Almost surely, 2^12122231130 is an apocalyptic number.

12122231130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122231130 is an abundant number, since it is smaller than the sum of its proper divisors (20482397550).

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

12122231130 is a wasteful number, since it uses less digits than its factorization.

12122231130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4644575 (or 4644572 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12122231130 its reverse (3113222121), we get a palindrome (15235453251).

Subtracting from 12122231130 its reverse (3113222121), we obtain a palindrome (9009009009).

The spelling of 12122231130 in words is "twelve billion, one hundred twenty-two million, two hundred thirty-one thousand, one hundred thirty".