12232447220 has 54 divisors (see below), whose sum is σ = 29890581462. Its totient is φ = 4192794816.

The previous prime is 12232447193. The next prime is 12232447237. The reversal of 12232447220 is 2274423221.

12232447220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 4671449104 + 7560998116 = 68348^2 + 86954^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3460574 + ... + 3464106.

Almost surely, 2^12232447220 is an apocalyptic number.

12232447220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12232447220 is an abundant number, since it is smaller than the sum of its proper divisors (17658134242).

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

12232447220 is an frugal number, since it uses more digits than its factorization.

12232447220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7089 (or 3547 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

The spelling of 12232447220 in words is "twelve billion, two hundred thirty-two million, four hundred forty-seven thousand, two hundred twenty".