111112222223 has 4 divisors (see below), whose sum is σ = 114696487488. Its totient is φ = 107527956960.

The previous prime is 111112222211. The next prime is 111112222279. The reversal of 111112222223 is 322222211111.

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 111112222223 - 2²⁴ = 111095445007 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 111112222195 and 111112222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111112222283) 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, 1792132586 + ... + 1792132647.

It is an arithmetic number, because the mean of its divisors is an integer number (28674121872).

Almost surely, 2^111112222223 is an apocalyptic number.

111112222223 is a deficient number, since it is larger than the sum of its proper divisors (3584265265).

111112222223 is an equidigital number, since it uses as much as digits as its factorization.

111112222223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3584265264.

The product of its digits is 192, while the sum is 20.

Adding to 111112222223 its reverse (322222211111), we get a palindrome (433334433334).

The spelling of 111112222223 in words is "one hundred eleven billion, one hundred twelve million, two hundred twenty-two thousand, two hundred twenty-three".