113222231 has 4 divisors (see below), whose sum is σ = 113547000. Its totient is φ = 112897464.

The previous prime is 113222203. The next prime is 113222237. The reversal of 113222231 is 132222311.

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 113222231 - 2⁶ = 113222167 is a prime.

It is a super-2 number, since 2×113222231² = 25638547185234722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113222237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161861 + ... + 162558.

It is an arithmetic number, because the mean of its divisors is an integer number (28386750).

Almost surely, 2^113222231 is an apocalyptic number.

113222231 is a deficient number, since it is larger than the sum of its proper divisors (324769).

113222231 is an equidigital number, since it uses as much as digits as its factorization.

113222231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324768.

The product of its digits is 144, while the sum is 17.

The square root of 113222231 is about 10640.5935454748. The cubic root of 113222231 is about 483.7755359572.

Adding to 113222231 its reverse (132222311), we get a palindrome (245444542).

The spelling of 113222231 in words is "one hundred thirteen million, two hundred twenty-two thousand, two hundred thirty-one".