244141221 has 4 divisors (see below), whose sum is σ = 325521632. Its totient is φ = 162760812.

The previous prime is 244141217. The next prime is 244141253. The reversal of 244141221 is 122141442.

244141221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 244141221 - 2² = 244141217 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 (244141201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40690201 + ... + 40690206.

It is an arithmetic number, because the mean of its divisors is an integer number (81380408).

Almost surely, 2^244141221 is an apocalyptic number.

It is an amenable number.

244141221 is a deficient number, since it is larger than the sum of its proper divisors (81380411).

244141221 is an equidigital number, since it uses as much as digits as its factorization.

244141221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81380410.

The product of its digits is 512, while the sum is 21.

The square root of 244141221 is about 15625.0190719884. The cubic root of 244141221 is about 625.0005085863. Note that the first 3 decimals are identical.

Adding to 244141221 its reverse (122141442), we get a palindrome (366282663).

The spelling of 244141221 in words is "two hundred forty-four million, one hundred forty-one thousand, two hundred twenty-one".