221244443241 has 8 divisors (see below), whose sum is σ = 295052410560. Its totient is φ = 147466385712.

The previous prime is 221244443219. The next prime is 221244443261. The reversal of 221244443241 is 142344442122.

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

It is not a de Polignac number, because 221244443241 - 2¹⁰ = 221244442217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221244443261) 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, 7460181 + ... + 7489778.

It is an arithmetic number, because the mean of its divisors is an integer number (36881551320).

Almost surely, 2^221244443241 is an apocalyptic number.

It is an amenable number.

221244443241 is a deficient number, since it is larger than the sum of its proper divisors (73807967319).

221244443241 is a wasteful number, since it uses less digits than its factorization.

221244443241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14954895.

The product of its digits is 49152, while the sum is 33.

Adding to 221244443241 its reverse (142344442122), we get a palindrome (363588885363).

The spelling of 221244443241 in words is "two hundred twenty-one billion, two hundred forty-four million, four hundred forty-three thousand, two hundred forty-one".