12221011112 has 16 divisors (see below), whose sum is σ = 23124621300. Its totient is φ = 6054445440.

The previous prime is 12221011087. The next prime is 12221011139. The reversal of 12221011112 is 21111012221.

12221011112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12138310276 + 82700836 = 110174^2 + 9094^2 .

It is a super-2 number, since 2×12221011112² (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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7006589 + ... + 7008332.

Almost surely, 2^12221011112 is an apocalyptic number.

It is an amenable number.

12221011112 is a deficient number, since it is larger than the sum of its proper divisors (10903610188).

12221011112 is a wasteful number, since it uses less digits than its factorization.

12221011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14015036 (or 14015032 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12221011112 its reverse (21111012221), we get a palindrome (33332023333).

The spelling of 12221011112 in words is "twelve billion, two hundred twenty-one million, eleven thousand, one hundred twelve".