12000001222 has 16 divisors (see below), whose sum is σ = 19638050112. Its totient is φ = 5454078120.

The previous prime is 12000001159. The next prime is 12000001231. The reversal of 12000001222 is 22210000021.

12000001222 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 = 12000001199 and 12000001208.

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, 472213 + ... + 496975.

It is an arithmetic number, because the mean of its divisors is an integer number (1227378132).

Almost surely, 2^12000001222 is an apocalyptic number.

12000001222 is a deficient number, since it is larger than the sum of its proper divisors (7638048890).

12000001222 is a wasteful number, since it uses less digits than its factorization.

12000001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46803.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 12000001222 its reverse (22210000021), we get a palindrome (34210001243).

The spelling of 12000001222 in words is "twelve billion, one thousand, two hundred twenty-two".