111231122222 has 32 divisors (see below), whose sum is σ = 185139561600. Its totient is φ = 49691917600.

The previous prime is 111231122221. The next prime is 111231122243. The reversal of 111231122222 is 222221132111.

It is a junction number, because it is equal to n+sod(n) for n = 111231122194 and 111231122203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111231122221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11714897 + ... + 11724387.

It is an arithmetic number, because the mean of its divisors is an integer number (5785611300).

Almost surely, 2^111231122222 is an apocalyptic number.

111231122222 is a deficient number, since it is larger than the sum of its proper divisors (73908439378).

111231122222 is a wasteful number, since it uses less digits than its factorization.

111231122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18592.

The product of its digits is 192, while the sum is 20.

Adding to 111231122222 its reverse (222221132111), we get a palindrome (333452254333).

The spelling of 111231122222 in words is "one hundred eleven billion, two hundred thirty-one million, one hundred twenty-two thousand, two hundred twenty-two".