12418221128 has 32 divisors (see below), whose sum is σ = 23656052160. Its totient is φ = 6110132160.

The previous prime is 12418221107. The next prime is 12418221131. The reversal of 12418221128 is 82112281421.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12418221094 and 12418221103.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 531533 + ... + 554403.

It is an arithmetic number, because the mean of its divisors is an integer number (739251630).

Almost surely, 2^12418221128 is an apocalyptic number.

It is an amenable number.

12418221128 is a deficient number, since it is larger than the sum of its proper divisors (11237831032).

12418221128 is a wasteful number, since it uses less digits than its factorization.

12418221128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23957 (or 23953 counting only the distinct ones).

The product of its digits is 4096, while the sum is 32.

The spelling of 12418221128 in words is "twelve billion, four hundred eighteen million, two hundred twenty-one thousand, one hundred twenty-eight".