12002221112 has 48 divisors (see below), whose sum is σ = 27556137000. Its totient is φ = 4873079232.

The previous prime is 12002221081. The next prime is 12002221139. The reversal of 12002221112 is 21112220021.

12002221112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

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 11 ways as a sum of consecutive naturals, for example, 798287 + ... + 813182.

Almost surely, 2^12002221112 is an apocalyptic number.

It is an amenable number.

12002221112 is an abundant number, since it is smaller than the sum of its proper divisors (15553915888).

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

12002221112 is a wasteful number, since it uses less digits than its factorization.

12002221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611508 (or 1611497 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12002221112 its reverse (21112220021), we get a palindrome (33114441133).

The spelling of 12002221112 in words is "twelve billion, two million, two hundred twenty-one thousand, one hundred twelve".