4413323420221 has 4 divisors (see below), whose sum is σ = 4672930680252. Its totient is φ = 4153716160192.

The previous prime is 4413323420213. The next prime is 4413323420239. The reversal of 4413323420221 is 1220243233144.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3467003036121 + 946320384100 = 1861989^2 + 972790^2 .

It is a cyclic number.

It is not a de Polignac number, because 4413323420221 - 2³ = 4413323420213 is a prime.

It is a super-2 number, since 2×4413323420221² (a number of 26 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 (4413323420201) 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, 129803629990 + ... + 129803630023.

It is an arithmetic number, because the mean of its divisors is an integer number (1168232670063).

Almost surely, 2^{4413323420221} is an apocalyptic number.

It is an amenable number.

4413323420221 is a deficient number, since it is larger than the sum of its proper divisors (259607260031).

4413323420221 is a wasteful number, since it uses less digits than its factorization.

4413323420221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259607260030.

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

Adding to 4413323420221 its reverse (1220243233144), we get a palindrome (5633566653365).

The spelling of 4413323420221 in words is "four trillion, four hundred thirteen billion, three hundred twenty-three million, four hundred twenty thousand, two hundred twenty-one".