12222111112 has 16 divisors (see below), whose sum is σ = 22958361360. Its totient is φ = 6099881424.

The previous prime is 12222111107. The next prime is 12222111127. The reversal of 12222111112 is 21111122221.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392118 + ... + 1400869.

It is an arithmetic number, because the mean of its divisors is an integer number (1434897585).

Almost surely, 2^12222111112 is an apocalyptic number.

It is an amenable number.

12222111112 is a deficient number, since it is larger than the sum of its proper divisors (10736250248).

12222111112 is a wasteful number, since it uses less digits than its factorization.

12222111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2793540 (or 2793536 counting only the distinct ones).

The product of its digits is 32, while the sum is 16.

Adding to 12222111112 its reverse (21111122221), we get a palindrome (33333233333).

The spelling of 12222111112 in words is "twelve billion, two hundred twenty-two million, one hundred eleven thousand, one hundred twelve".