12122032200 has 96 divisors (see below), whose sum is σ = 37735977600. Its totient is φ = 3218978560.

The previous prime is 12122032187. The next prime is 12122032283. The reversal of 12122032200 is 223022121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12122032200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101134 + ... + 185666.

It is an arithmetic number, because the mean of its divisors is an integer number (393083100).

Almost surely, 2^12122032200 is an apocalyptic number.

12122032200 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 12122032200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18867988800).

12122032200 is an abundant number, since it is smaller than the sum of its proper divisors (25613945400).

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

12122032200 is a wasteful number, since it uses less digits than its factorization.

12122032200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84791 (or 84782 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12122032200 its reverse (223022121), we get a palindrome (12345054321).

The spelling of 12122032200 in words is "twelve billion, one hundred twenty-two million, thirty-two thousand, two hundred".