12001002222 has 16 divisors (see below), whose sum is σ = 26184004992. Its totient is φ = 3636667320.

The previous prime is 12001002199. The next prime is 12001002229. The reversal of 12001002222 is 22220010021.

12001002222 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 = 12001002198 and 12001002207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001002229) by changing a digit.

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, 90916618 + ... + 90916749.

It is an arithmetic number, because the mean of its divisors is an integer number (1636500312).

Almost surely, 2^12001002222 is an apocalyptic number.

12001002222 is an abundant number, since it is smaller than the sum of its proper divisors (14183002770).

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

12001002222 is a wasteful number, since it uses less digits than its factorization.

12001002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181833383.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 12001002222 its reverse (22220010021), we get a palindrome (34221012243).

The spelling of 12001002222 in words is "twelve billion, one million, two thousand, two hundred twenty-two".