12222112221112 has 32 divisors (see below), whose sum is σ = 23921495510400. Its totient is φ = 5847476659200.

The previous prime is 12222112221061. The next prime is 12222112221139. The reversal of 12222112221112 is 21112221122221.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276847089 + ... + 276891232.

It is an arithmetic number, because the mean of its divisors is an integer number (747546734700).

Almost surely, 2^{12222112221112} is an apocalyptic number.

It is an amenable number.

12222112221112 is a deficient number, since it is larger than the sum of its proper divisors (11699383289288).

12222112221112 is a wasteful number, since it uses less digits than its factorization.

12222112221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553738447 (or 553738443 counting only the distinct ones).

The product of its digits is 256, while the sum is 22.

Adding to 12222112221112 its reverse (21112221122221), we get a palindrome (33334333343333).

The spelling of 12222112221112 in words is "twelve trillion, two hundred twenty-two billion, one hundred twelve million, two hundred twenty-one thousand, one hundred twelve".