12204243400 has 96 divisors (see below), whose sum is σ = 30159230400. Its totient is φ = 4579718400.

The previous prime is 12204243383. The next prime is 12204243421. The reversal of 12204243400 is 434240221.

It is a happy number.

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, 375810 + ... + 406990.

It is an arithmetic number, because the mean of its divisors is an integer number (314158650).

Almost surely, 2^12204243400 is an apocalyptic number.

12204243400 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 12204243400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15079615200).

12204243400 is an abundant number, since it is smaller than the sum of its proper divisors (17954987000).

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

12204243400 is a wasteful number, since it uses less digits than its factorization.

12204243400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31319 (or 31310 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 12204243400 its reverse (434240221), we get a palindrome (12638483621).

The spelling of 12204243400 in words is "twelve billion, two hundred four million, two hundred forty-three thousand, four hundred".