111111111202223 has 4 divisors (see below), whose sum is σ = 121212121311528. Its totient is φ = 101010101092920.

The previous prime is 111111111202163. The next prime is 111111111202297. The reversal of 111111111202223 is 322202111111111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111111111202223 - 2¹⁸ = 111111110940079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111111111202195 and 111111111202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111111111232223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5050505054636 + ... + 5050505054657.

It is an arithmetic number, because the mean of its divisors is an integer number (30303030327882).

Almost surely, 2^{111111111202223} is an apocalyptic number.

111111111202223 is a deficient number, since it is larger than the sum of its proper divisors (10101010109305).

111111111202223 is a wasteful number, since it uses less digits than its factorization.

111111111202223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10101010109304.

The product of its (nonzero) digits is 48, while the sum is 20.

Adding to 111111111202223 its reverse (322202111111111), we get a palindrome (433313222313334).

The spelling of 111111111202223 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred eleven million, two hundred two thousand, two hundred twenty-three".