111722 has 8 divisors (see below), whose sum is σ = 180516. Its totient is φ = 51552.

The previous prime is 111721. The next prime is 111731. The reversal of 111722 is 227111.

It can be written as a sum of positive squares in 2 ways, for example, as 108241 + 3481 = 329^2 + 59^2 .

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

It is a zygodrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 111697 and 111706.

It is not an unprimeable number, because it can be changed into a prime (111721) 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, 2123 + ... + 2174.

2¹¹¹⁷²² is an apocalyptic number.

111722 is a deficient number, since it is larger than the sum of its proper divisors (68794).

111722 is a wasteful number, since it uses less digits than its factorization.

111722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4312.

The product of its digits is 28, while the sum is 14.

The square root of 111722 is about 334.2484106170. The cubic root of 111722 is about 48.1629301242.

Adding to 111722 its reverse (227111), we get a palindrome (338833).

The spelling of 111722 in words is "one hundred eleven thousand, seven hundred twenty-two", and thus it is an iban number.