111222320022 has 40 divisors (see below), whose sum is σ = 271876786632. Its totient is φ = 33703732800.

The previous prime is 111222319993. The next prime is 111222320059. The reversal of 111222320022 is 220023222111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111222319977 and 111222320004.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 31205379 + ... + 31208942.

Almost surely, 2^111222320022 is an apocalyptic number.

111222320022 is an abundant number, since it is smaller than the sum of its proper divisors (160654466610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111222320022 is a wasteful number, since it uses less digits than its factorization.

111222320022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62414346 (or 62414337 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 111222320022 its reverse (220023222111), we get a palindrome (331245542133).

The spelling of 111222320022 in words is "one hundred eleven billion, two hundred twenty-two million, three hundred twenty thousand, twenty-two".