111123031222 has 16 divisors (see below), whose sum is σ = 190579757472. Its totient is φ = 47603373120.

The previous prime is 111123031199. The next prime is 111123031223. The reversal of 111123031222 is 222130321111.

It is a self number, because there is not a number n which added to its sum of digits gives 111123031222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111123031223) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1698679 + ... + 1762882.

It is an arithmetic number, because the mean of its divisors is an integer number (11911234842).

Almost surely, 2^111123031222 is an apocalyptic number.

111123031222 is a deficient number, since it is larger than the sum of its proper divisors (79456726250).

111123031222 is a wasteful number, since it uses less digits than its factorization.

111123031222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3463863.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 111123031222 its reverse (222130321111), we get a palindrome (333253352333).

The spelling of 111123031222 in words is "one hundred eleven billion, one hundred twenty-three million, thirty-one thousand, two hundred twenty-two".