12228559616 has 72 divisors (see below), whose sum is σ = 30042335904. Its totient is φ = 4837662720.

The previous prime is 12228559589. The next prime is 12228559627. The reversal of 12228559616 is 61695582221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239165 + ... + 285756.

Almost surely, 2^12228559616 is an apocalyptic number.

12228559616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12228559616 is an abundant number, since it is smaller than the sum of its proper divisors (17813776288).

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

12228559616 is an equidigital number, since it uses as much as digits as its factorization.

12228559616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524957 (or 524943 counting only the distinct ones).

The product of its digits is 518400, while the sum is 47.

The spelling of 12228559616 in words is "twelve billion, two hundred twenty-eight million, five hundred fifty-nine thousand, six hundred sixteen".