111121111222 has 32 divisors (see below), whose sum is σ = 193299955200. Its totient is φ = 47377404000.

The previous prime is 111121111193. The next prime is 111121111243. The reversal of 111121111222 is 222111121111.

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

It is a junction number, because it is equal to n+sod(n) for n = 111121111196 and 111121111205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1273822 + ... + 1358257.

It is an arithmetic number, because the mean of its divisors is an integer number (6040623600).

Almost surely, 2^111121111222 is an apocalyptic number.

111121111222 is a deficient number, since it is larger than the sum of its proper divisors (82178843978).

111121111222 is a wasteful number, since it uses less digits than its factorization.

111121111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632212.

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

Adding to 111121111222 its reverse (222111121111), we get a palindrome (333232232333).

It can be divided in two parts, 111121111 and 222, that multiplied together give a palindrome (24668886642).

The spelling of 111121111222 in words is "one hundred eleven billion, one hundred twenty-one million, one hundred eleven thousand, two hundred twenty-two".