443323220012221 has 4 divisors (see below), whose sum is σ = 462598142621472. Its totient is φ = 424048297402972.

The previous prime is 443323220012213. The next prime is 443323220012311. The reversal of 443323220012221 is 122210022323344.

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 443323220012221 - 2³ = 443323220012213 is a prime.

It is a super-2 number, since 2×443323220012221² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443323220013221) 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, 9637461304591 + ... + 9637461304636.

It is an arithmetic number, because the mean of its divisors is an integer number (115649535655368).

Almost surely, 2^{443323220012221} is an apocalyptic number.

It is an amenable number.

443323220012221 is a deficient number, since it is larger than the sum of its proper divisors (19274922609251).

443323220012221 is a wasteful number, since it uses less digits than its factorization.

443323220012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19274922609250.

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

Adding to 443323220012221 its reverse (122210022323344), we get a palindrome (565533242335565).

The spelling of 443323220012221 in words is "four hundred forty-three trillion, three hundred twenty-three billion, two hundred twenty million, twelve thousand, two hundred twenty-one".