111331122212 has 24 divisors (see below), whose sum is σ = 205114744800. Its totient is φ = 52727798016.

The previous prime is 111331122211. The next prime is 111331122251. The reversal of 111331122212 is 212221133111.

It is not an unprimeable number, because it can be changed into a prime (111331122211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409364 + ... + 624692.

It is an arithmetic number, because the mean of its divisors is an integer number (8546447700).

Almost surely, 2^111331122212 is an apocalyptic number.

It is an amenable number.

111331122212 is a deficient number, since it is larger than the sum of its proper divisors (93783622588).

111331122212 is a wasteful number, since it uses less digits than its factorization.

111331122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222155 (or 222153 counting only the distinct ones).

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

Adding to 111331122212 its reverse (212221133111), we get a palindrome (323552255323).

The spelling of 111331122212 in words is "one hundred eleven billion, three hundred thirty-one million, one hundred twenty-two thousand, two hundred twelve".