12001000022 has 16 divisors (see below), whose sum is σ = 20055831552.
Its totient is φ = 5338935720.
The previous prime is 12001000003. The next prime is 12001000031. The reversal of 12001000022 is 22000010021.
Adding to 12001000022 its reverse (22000010021), we get a palindrome (34001010043).
Subtracting 12001000022 from its reverse (22000010021), we obtain a palindrome (9999009999).
12001000022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a junction number, because it is equal to n+sod(n) for n = 12000999973 and 12001000009.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5802158 + ... + 5804225.
It is an arithmetic number, because the mean of its divisors is an integer number (1253489472).
Almost surely, 212001000022 is an apocalyptic number.
12001000022 is a deficient number, since it is larger than the sum of its proper divisors (8054831530).
12001000022 is a wasteful number, since it uses less digits than its factorization.
12001000022 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11606443.
The product of its (nonzero) digits is 8, while the sum is 8.
The spelling of 12001000022 in words is "twelve billion, one million, twenty-two", and thus it is an aban number and an uban number.