111220133 has 8 divisors (see below), whose sum is σ = 117007200. Its totient is φ = 105563248.

The previous prime is 111220127. The next prime is 111220147. The reversal of 111220133 is 331022111.

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

It is not a de Polignac number, because 111220133 - 2⁴ = 111220117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220183) 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, 30791 + ... + 34212.

It is an arithmetic number, because the mean of its divisors is an integer number (14625900).

Almost surely, 2^111220133 is an apocalyptic number.

It is an amenable number.

111220133 is a deficient number, since it is larger than the sum of its proper divisors (5787067).

111220133 is an equidigital number, since it uses as much as digits as its factorization.

111220133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65091.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 111220133 is about 10546.0956282408. The cubic root of 111220133 is about 480.9070421428.

Adding to 111220133 its reverse (331022111), we get a palindrome (442242244).

The spelling of 111220133 in words is "one hundred eleven million, two hundred twenty thousand, one hundred thirty-three".