224020443440321 has 4 divisors (see below), whose sum is σ = 244385938298544. Its totient is φ = 203654948582100.

The previous prime is 224020443440293. The next prime is 224020443440347. The reversal of 224020443440321 is 123044344020422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 224020443440321 - 2³⁴ = 224003263571137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224020443440351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10182747429095 + ... + 10182747429116.

It is an arithmetic number, because the mean of its divisors is an integer number (61096484574636).

Almost surely, 2^{224020443440321} is an apocalyptic number.

It is an amenable number.

224020443440321 is a deficient number, since it is larger than the sum of its proper divisors (20365494858223).

224020443440321 is a wasteful number, since it uses less digits than its factorization.

224020443440321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20365494858222.

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 224020443440321 its reverse (123044344020422), we get a palindrome (347064787460743).

The spelling of 224020443440321 in words is "two hundred twenty-four trillion, twenty billion, four hundred forty-three million, four hundred forty thousand, three hundred twenty-one".