221434310443 has 8 divisors (see below), whose sum is σ = 225377449920. Its totient is φ = 217501270080.

The previous prime is 221434310431. The next prime is 221434310479. The reversal of 221434310443 is 344013434122.

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 221434310443 - 2²⁹ = 220897439531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221434310743) 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, 2480530 + ... + 2568247.

It is an arithmetic number, because the mean of its divisors is an integer number (28172181240).

Almost surely, 2^221434310443 is an apocalyptic number.

221434310443 is a deficient number, since it is larger than the sum of its proper divisors (3943139477).

221434310443 is an equidigital number, since it uses as much as digits as its factorization.

221434310443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5049557.

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

Adding to 221434310443 its reverse (344013434122), we get a palindrome (565447744565).

The spelling of 221434310443 in words is "two hundred twenty-one billion, four hundred thirty-four million, three hundred ten thousand, four hundred forty-three".