241561221 has 8 divisors (see below), whose sum is σ = 351361824. Its totient is φ = 146400720.

The previous prime is 241561183. The next prime is 241561237. The reversal of 241561221 is 122165142.

241561221 is nontrivially palindromic in base 6.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 241561221 - 2¹¹ = 241559173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 241561191 and 241561200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (241561261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3659986 + ... + 3660051.

It is an arithmetic number, because the mean of its divisors is an integer number (43920228).

Almost surely, 2^241561221 is an apocalyptic number.

It is an amenable number.

241561221 is a deficient number, since it is larger than the sum of its proper divisors (109800603).

241561221 is a wasteful number, since it uses less digits than its factorization.

241561221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7320051.

The product of its digits is 960, while the sum is 24.

The square root of 241561221 is about 15542.2398964885. The cubic root of 241561221 is about 622.7911110791.

It can be divided in two parts, 2415 and 61221, that added together give a palindrome (63636).

The spelling of 241561221 in words is "two hundred forty-one million, five hundred sixty-one thousand, two hundred twenty-one".