113221111 has 8 divisors (see below), whose sum is σ = 118800864. Its totient is φ = 107696160.

The previous prime is 113221103. The next prime is 113221127. The reversal of 113221111 is 111122311.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 113221111 - 2³ = 113221103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113221091 and 113221100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113221181) 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, 9436 + ... + 17761.

It is an arithmetic number, because the mean of its divisors is an integer number (14850108).

Almost surely, 2^113221111 is an apocalyptic number.

113221111 is a deficient number, since it is larger than the sum of its proper divisors (5579753).

113221111 is a wasteful number, since it uses less digits than its factorization.

113221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27401.

The product of its digits is 12, while the sum is 13.

The square root of 113221111 is about 10640.5409167016. The cubic root of 113221111 is about 483.7739407747.

Adding to 113221111 its reverse (111122311), we get a palindrome (224343422).

The spelling of 113221111 in words is "one hundred thirteen million, two hundred twenty-one thousand, one hundred eleven".