244112221 has 4 divisors (see below), whose sum is σ = 245062332. Its totient is φ = 243162112.

The previous prime is 244112203. The next prime is 244112233. The reversal of 244112221 is 122211442.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 140683321 + 103428900 = 11861^2 + 10170^2 .

It is a cyclic number.

It is not a de Polignac number, because 244112221 - 2⁵ = 244112189 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 (244112201) 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, 474670 + ... + 475183.

It is an arithmetic number, because the mean of its divisors is an integer number (61265583).

Almost surely, 2^244112221 is an apocalyptic number.

It is an amenable number.

244112221 is a deficient number, since it is larger than the sum of its proper divisors (950111).

244112221 is an equidigital number, since it uses as much as digits as its factorization.

244112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950110.

The product of its digits is 256, while the sum is 19.

The square root of 244112221 is about 15624.0910455617. The cubic root of 244112221 is about 624.9757609800.

Adding to 244112221 its reverse (122211442), we get a palindrome (366323663).

The spelling of 244112221 in words is "two hundred forty-four million, one hundred twelve thousand, two hundred twenty-one".