12331122028 has 12 divisors (see below), whose sum is σ = 21648409720. Its totient is φ = 6145862112.

The previous prime is 12331122019. The next prime is 12331122029. The reversal of 12331122028 is 82022113321.

It is a junction number, because it is equal to n+sod(n) for n = 12331121993 and 12331122011.

It is not an unprimeable number, because it can be changed into a prime (12331122029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4923318 + ... + 4925821.

Almost surely, 2^12331122028 is an apocalyptic number.

It is an amenable number.

12331122028 is a deficient number, since it is larger than the sum of its proper divisors (9317287692).

12331122028 is a wasteful number, since it uses less digits than its factorization.

12331122028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9849456 (or 9849454 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 12331122028 its reverse (82022113321), we get a palindrome (94353235349).

The spelling of 12331122028 in words is "twelve billion, three hundred thirty-one million, one hundred twenty-two thousand, twenty-eight".