113244221 has 2 divisors, whose sum is σ = 113244222. Its totient is φ = 113244220.

The previous prime is 113244181. The next prime is 113244233. The reversal of 113244221 is 122442311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107536900 + 5707321 = 10370^2 + 2389^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113244221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113244193 and 113244202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113244251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56622110 + 56622111.

It is an arithmetic number, because the mean of its divisors is an integer number (56622111).

Almost surely, 2^113244221 is an apocalyptic number.

It is an amenable number.

113244221 is a deficient number, since it is larger than the sum of its proper divisors (1).

113244221 is an equidigital number, since it uses as much as digits as its factorization.

113244221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 20.

The square root of 113244221 is about 10641.6268023268. The cubic root of 113244221 is about 483.8068535271.

Adding to 113244221 its reverse (122442311), we get a palindrome (235686532).

The spelling of 113244221 in words is "one hundred thirteen million, two hundred forty-four thousand, two hundred twenty-one".