221313244241 has 8 divisors (see below), whose sum is σ = 238385094144. Its totient is φ = 204862188960.

The previous prime is 221313244157. The next prime is 221313244247. The reversal of 221313244241 is 142442313122.

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

It is a cyclic number.

It is not a de Polignac number, because 221313244241 - 2¹⁸ = 221312982097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221313244247) 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 7 ways as a sum of consecutive naturals, for example, 155197916 + ... + 155199341.

It is an arithmetic number, because the mean of its divisors is an integer number (29798136768).

Almost surely, 2^221313244241 is an apocalyptic number.

It is an amenable number.

221313244241 is a deficient number, since it is larger than the sum of its proper divisors (17071849903).

221313244241 is a wasteful number, since it uses less digits than its factorization.

221313244241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310397311.

The product of its digits is 9216, while the sum is 29.

Adding to 221313244241 its reverse (142442313122), we get a palindrome (363755557363).

The spelling of 221313244241 in words is "two hundred twenty-one billion, three hundred thirteen million, two hundred forty-four thousand, two hundred forty-one".