111111112122212 has 96 divisors (see below), whose sum is σ = 202256057203200. Its totient is φ = 53371975680000.

The previous prime is 111111112122203. The next prime is 111111112122259. The reversal of 111111112122212 is 212221211111111.

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

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 31 ways as a sum of consecutive naturals, for example, 2590041539 + ... + 2590084437.

It is an arithmetic number, because the mean of its divisors is an integer number (2106833929200).

Almost surely, 2^{111111112122212} is an apocalyptic number.

It is an amenable number.

111111112122212 is a deficient number, since it is larger than the sum of its proper divisors (91144945080988).

111111112122212 is a wasteful number, since it uses less digits than its factorization.

111111112122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43893 (or 43891 counting only the distinct ones).

The product of its digits is 32, while the sum is 20.

Adding to 111111112122212 its reverse (212221211111111), we get a palindrome (323332323233323).

The spelling of 111111112122212 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred twelve million, one hundred twenty-two thousand, two hundred twelve".