12012122232 has 128 divisors (see below), whose sum is σ = 37983168000. Its totient is φ = 3481758720.

The previous prime is 12012122201. The next prime is 12012122251. The reversal of 12012122232 is 23222121021.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55257 + ... + 164552.

It is an arithmetic number, because the mean of its divisors is an integer number (296743500).

Almost surely, 2^12012122232 is an apocalyptic number.

12012122232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12012122232 is an abundant number, since it is smaller than the sum of its proper divisors (25971045768).

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

12012122232 is a wasteful number, since it uses less digits than its factorization.

12012122232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219858 (or 219848 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12012122232 its reverse (23222121021), we get a palindrome (35234243253).

The spelling of 12012122232 in words is "twelve billion, twelve million, one hundred twenty-two thousand, two hundred thirty-two".