12003022122 has 128 divisors (see below), whose sum is σ = 30594170880. Its totient is φ = 3053963520.

The previous prime is 12003022099. The next prime is 12003022169. The reversal of 12003022122 is 22122030021.

It is a happy number.

It is a super-2 number, since 2×12003022122² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6583303 + ... + 6585125.

It is an arithmetic number, because the mean of its divisors is an integer number (239016960).

Almost surely, 2^12003022122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12003022122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15297085440).

12003022122 is an abundant number, since it is smaller than the sum of its proper divisors (18591148758).

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

12003022122 is a wasteful number, since it uses less digits than its factorization.

12003022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12003022122 its reverse (22122030021), we get a palindrome (34125052143).

The spelling of 12003022122 in words is "twelve billion, three million, twenty-two thousand, one hundred twenty-two".