113224221 has 12 divisors (see below), whose sum is σ = 178414080. Its totient is φ = 68620680.

The previous prime is 113224219. The next prime is 113224261. The reversal of 113224221 is 122422311.

It is a happy number.

It is not a de Polignac number, because 113224221 - 2¹ = 113224219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113224194 and 113224203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113224261) 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 11 ways as a sum of consecutive naturals, for example, 571741 + ... + 571938.

It is an arithmetic number, because the mean of its divisors is an integer number (14867840).

Almost surely, 2^113224221 is an apocalyptic number.

113224221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

113224221 is a deficient number, since it is larger than the sum of its proper divisors (65189859).

113224221 is a wasteful number, since it uses less digits than its factorization.

113224221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143696 (or 1143693 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 113224221 is about 10640.6870548851. The cubic root of 113224221 is about 483.7783702289.

Adding to 113224221 its reverse (122422311), we get a palindrome (235646532).

The spelling of 113224221 in words is "one hundred thirteen million, two hundred twenty-four thousand, two hundred twenty-one".