12012332200 has 96 divisors (see below), whose sum is σ = 30523671360. Its totient is φ = 4360089600.

The previous prime is 12012332191. The next prime is 12012332203. The reversal of 12012332200 is 223321021.

It is a super-2 number, since 2×12012332200² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12012332203) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1264669 + ... + 1274131.

It is an arithmetic number, because the mean of its divisors is an integer number (317954910).

Almost surely, 2^12012332200 is an apocalyptic number.

12012332200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12012332200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15261835680).

12012332200 is an abundant number, since it is smaller than the sum of its proper divisors (18511339160).

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

12012332200 is a wasteful number, since it uses less digits than its factorization.

12012332200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10067 (or 10058 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 12012332200 its reverse (223321021), we get a palindrome (12235653221).

The spelling of 12012332200 in words is "twelve billion, twelve million, three hundred thirty-two thousand, two hundred".