111331211222 has 64 divisors (see below), whose sum is σ = 209520000000. Its totient is φ = 43102126080.

The previous prime is 111331211197. The next prime is 111331211261. The reversal of 111331211222 is 222112133111.

It is a junction number, because it is equal to n+sod(n) for n = 111331211194 and 111331211203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37121279 + ... + 37124277.

It is an arithmetic number, because the mean of its divisors is an integer number (3273750000).

Almost surely, 2^111331211222 is an apocalyptic number.

111331211222 is a deficient number, since it is larger than the sum of its proper divisors (98188788778).

111331211222 is a wasteful number, since it uses less digits than its factorization.

111331211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4461.

The product of its digits is 144, while the sum is 20.

Adding to 111331211222 its reverse (222112133111), we get a palindrome (333443344333).

The spelling of 111331211222 in words is "one hundred eleven billion, three hundred thirty-one million, two hundred eleven thousand, two hundred twenty-two".