12001003122 has 16 divisors (see below), whose sum is σ = 24015354912. Its totient is φ = 3998109600.

The previous prime is 12001003121. The next prime is 12001003151. The reversal of 12001003122 is 22130010021.

It is a junction number, because it is equal to n+sod(n) for n = 12001003098 and 12001003107.

It is not an unprimeable number, because it can be changed into a prime (12001003121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544488 + ... + 566099.

It is an arithmetic number, because the mean of its divisors is an integer number (1500959682).

Almost surely, 2^12001003122 is an apocalyptic number.

12001003122 is an abundant number, since it is smaller than the sum of its proper divisors (12014351790).

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

12001003122 is a wasteful number, since it uses less digits than its factorization.

12001003122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112393.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12001003122 its reverse (22130010021), we get a palindrome (34131013143).

The spelling of 12001003122 in words is "twelve billion, one million, three thousand, one hundred twenty-two".