12788111228 has 24 divisors (see below), whose sum is σ = 23362876320. Its totient is φ = 6113257920.

The previous prime is 12788111213. The next prime is 12788111249. The reversal of 12788111228 is 82211188721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178118 + ... + 239378.

It is an arithmetic number, because the mean of its divisors is an integer number (973453180).

Almost surely, 2^12788111228 is an apocalyptic number.

It is an amenable number.

12788111228 is a deficient number, since it is larger than the sum of its proper divisors (10574765092).

12788111228 is a wasteful number, since it uses less digits than its factorization.

12788111228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63557 (or 63555 counting only the distinct ones).

The product of its digits is 28672, while the sum is 41.

Adding to 12788111228 its reverse (82211188721), we get a palindrome (94999299949).

The spelling of 12788111228 in words is "twelve billion, seven hundred eighty-eight million, one hundred eleven thousand, two hundred twenty-eight".