111111722223 has 16 divisors (see below), whose sum is σ = 150619871616. Its totient is φ = 72839708640.

The previous prime is 111111722221. The next prime is 111111722233. The reversal of 111111722223 is 322227111111.

It is not a de Polignac number, because 111111722223 - 2¹ = 111111722221 is a prime.

It is a super-2 number, since 2×111111722223² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111111722193 and 111111722202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111111722221) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 583336 + ... + 750002.

It is an arithmetic number, because the mean of its divisors is an integer number (9413741976).

Almost surely, 2^111111722223 is an apocalyptic number.

111111722223 is a deficient number, since it is larger than the sum of its proper divisors (39508149393).

111111722223 is a wasteful number, since it uses less digits than its factorization.

111111722223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170374.

The product of its digits is 336, while the sum is 24.

Adding to 111111722223 its reverse (322227111111), we get a palindrome (433338833334).

The spelling of 111111722223 in words is "one hundred eleven billion, one hundred eleven million, seven hundred twenty-two thousand, two hundred twenty-three".