241131221 has 4 divisors (see below), whose sum is σ = 241448844. Its totient is φ = 240813600.

The previous prime is 241131203. The next prime is 241131227. The reversal of 241131221 is 122131142.

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 86750596 + 154380625 = 9314^2 + 12425^2 .

It is a cyclic number.

It is not a de Polignac number, because 241131221 - 2⁶ = 241131157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 241131221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (241131227) 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 in 3 ways as a sum of consecutive naturals, for example, 157670 + ... + 159191.

It is an arithmetic number, because the mean of its divisors is an integer number (60362211).

Almost surely, 2^241131221 is an apocalyptic number.

It is an amenable number.

241131221 is a deficient number, since it is larger than the sum of its proper divisors (317623).

241131221 is an equidigital number, since it uses as much as digits as its factorization.

241131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317622.

The product of its digits is 96, while the sum is 17.

The square root of 241131221 is about 15528.4004649545. The cubic root of 241131221 is about 622.4213507943.

Adding to 241131221 its reverse (122131142), we get a palindrome (363262363).

The spelling of 241131221 in words is "two hundred forty-one million, one hundred thirty-one thousand, two hundred twenty-one".