12225547872 has 288 divisors, whose sum is σ = 38217553920. Its totient is φ = 3692666880.

The previous prime is 12225547871. The next prime is 12225547879. The reversal of 12225547872 is 27874552221.

12225547872 is a `hidden beast` number, since 1 + 2 + 2 + 25 + 547 + 87 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12225547871) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16453933 + ... + 16454675.

It is an arithmetic number, because the mean of its divisors is an integer number (132699840).

Almost surely, 2^12225547872 is an apocalyptic number.

12225547872 is a gapful number since it is divisible by the number (12) 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 12225547872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19108776960).

12225547872 is an abundant number, since it is smaller than the sum of its proper divisors (25992006048).

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

12225547872 is a wasteful number, since it uses less digits than its factorization.

12225547872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906 (or 895 counting only the distinct ones).

The product of its digits is 627200, while the sum is 45.

The spelling of 12225547872 in words is "twelve billion, two hundred twenty-five million, five hundred forty-seven thousand, eight hundred seventy-two".