12224420352 has 120 divisors (see below), whose sum is σ = 35460453600. Its totient is φ = 4054026240.

The previous prime is 12224420347. The next prime is 12224420357. The reversal of 12224420352 is 25302442221.

12224420352 is a `hidden beast` number, since 12 + 224 + 420 + 3 + 5 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (12224420347) and next prime (12224420357).

It is not an unprimeable number, because it can be changed into a prime (12224420357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 910327 + ... + 923657.

It is an arithmetic number, because the mean of its divisors is an integer number (295503780).

Almost surely, 2^12224420352 is an apocalyptic number.

12224420352 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 12224420352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17730226800).

12224420352 is an abundant number, since it is smaller than the sum of its proper divisors (23236033248).

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

12224420352 is a wasteful number, since it uses less digits than its factorization.

12224420352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13554 (or 13535 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 12224420352 its reverse (25302442221), we get a palindrome (37526862573).

The spelling of 12224420352 in words is "twelve billion, two hundred twenty-four million, four hundred twenty thousand, three hundred fifty-two".