111122222223 has 8 divisors (see below), whose sum is σ = 151776693936. Its totient is φ = 72274616000.

The previous prime is 111122222221. The next prime is 111122222231. The reversal of 111122222223 is 322222221111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111122222223 - 2¹ = 111122222221 is a prime.

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 111122222223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111122222221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451716228 + ... + 451716473.

It is an arithmetic number, because the mean of its divisors is an integer number (18972086742).

Almost surely, 2^111122222223 is an apocalyptic number.

111122222223 is a deficient number, since it is larger than the sum of its proper divisors (40654471713).

111122222223 is an equidigital number, since it uses as much as digits as its factorization.

111122222223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903432745.

The product of its digits is 384, while the sum is 21.

Adding to 111122222223 its reverse (322222221111), we get a palindrome (433344443334).

The spelling of 111122222223 in words is "one hundred eleven billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-three".