111112222224 has 160 divisors (see below), whose sum is σ = 327362618880. Its totient is φ = 32255870976.

The previous prime is 111112222211. The next prime is 111112222279. The reversal of 111112222224 is 422222211111.

It is a Cunningham number, because it is equal to 333335²-1.

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 111112222224.

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, 583339 + ... + 750005.

It is an arithmetic number, because the mean of its divisors is an integer number (2046016368).

Almost surely, 2^111112222224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111112222224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163681309440).

111112222224 is an abundant number, since it is smaller than the sum of its proper divisors (216250396656).

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

111112222224 is a wasteful number, since it uses less digits than its factorization.

111112222224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166757 (or 166751 counting only the distinct ones).

The product of its digits is 256, while the sum is 21.

Adding to 111112222224 its reverse (422222211111), we get a palindrome (533334433335).

It can be divided in two parts, 111112 and 222224, that added together give a triangular number (333336 = T₈₁₆).

The spelling of 111112222224 in words is "one hundred eleven billion, one hundred twelve million, two hundred twenty-two thousand, two hundred twenty-four".