221443223341 has 8 divisors (see below), whose sum is σ = 223352816184. Its totient is φ = 219537880320.

The previous prime is 221443223311. The next prime is 221443223357. The reversal of 221443223341 is 143322344122.

It can be written as a sum of positive squares in 4 ways, for example, as 19204139241 + 202239084100 = 138579^2 + 449710^2 .

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 221443223341 - 2²¹ = 221441126189 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 (221443223311) 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, 957750 + ... + 1166263.

It is an arithmetic number, because the mean of its divisors is an integer number (27919102023).

Almost surely, 2^221443223341 is an apocalyptic number.

It is an amenable number.

221443223341 is a deficient number, since it is larger than the sum of its proper divisors (1909592843).

221443223341 is a wasteful number, since it uses less digits than its factorization.

221443223341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124911.

The product of its digits is 27648, while the sum is 31.

Adding to 221443223341 its reverse (143322344122), we get a palindrome (364765567463).

The spelling of 221443223341 in words is "two hundred twenty-one billion, four hundred forty-three million, two hundred twenty-three thousand, three hundred forty-one".