12287247220 has 96 divisors (see below), whose sum is σ = 28248030720. Its totient is φ = 4474821120.

The previous prime is 12287247187. The next prime is 12287247221. The reversal of 12287247220 is 2274278221.

It is a self number, because there is not a number n which added to its sum of digits gives 12287247220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12287247221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 940654 + ... + 953626.

It is an arithmetic number, because the mean of its divisors is an integer number (294250320).

Almost surely, 2^12287247220 is an apocalyptic number.

12287247220 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 12287247220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14124015360).

12287247220 is an abundant number, since it is smaller than the sum of its proper divisors (15960783500).

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

12287247220 is a wasteful number, since it uses less digits than its factorization.

12287247220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13105 (or 13103 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 37.

The spelling of 12287247220 in words is "twelve billion, two hundred eighty-seven million, two hundred forty-seven thousand, two hundred twenty".