12225708400 has 120 divisors (see below), whose sum is σ = 30130563584. Its totient is φ = 4764614400.

The previous prime is 12225708377. The next prime is 12225708401. The reversal of 12225708400 is 480752221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12225708401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10439815 + ... + 10440985.

Almost surely, 2^12225708400 is an apocalyptic number.

12225708400 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 12225708400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15065281792).

12225708400 is an abundant number, since it is smaller than the sum of its proper divisors (17904855184).

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

12225708400 is a wasteful number, since it uses less digits than its factorization.

12225708400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839 (or 1828 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The spelling of 12225708400 in words is "twelve billion, two hundred twenty-five million, seven hundred eight thousand, four hundred".