12225443200 has 96 divisors (see below), whose sum is σ = 30401871120. Its totient is φ = 4857600000.

The previous prime is 12225443177. The next prime is 12225443221. The reversal of 12225443200 is 234452221.

It is a super-2 number, since 2×12225443200² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 470550 + ... + 495850.

Almost surely, 2^12225443200 is an apocalyptic number.

12225443200 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 12225443200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15200935560).

12225443200 is an abundant number, since it is smaller than the sum of its proper divisors (18176427920).

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

12225443200 is a wasteful number, since it uses less digits than its factorization.

12225443200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25476 (or 25459 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 12225443200 its reverse (234452221), we get a palindrome (12459895421).

The spelling of 12225443200 in words is "twelve billion, two hundred twenty-five million, four hundred forty-three thousand, two hundred".