4021331322005 has 4 divisors (see below), whose sum is σ = 4825597586412. Its totient is φ = 3217065057600.

The previous prime is 4021331321999. The next prime is 4021331322007. The reversal of 4021331322005 is 5002231331204.

It is a happy number.

4021331322005 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 2352953516356 + 1668377805649 = 1533934^2 + 1291657^2 .

It is not a de Polignac number, because 4021331322005 - 2⁴ = 4021331321989 is a prime.

It is a super-2 number, since 2×4021331322005² (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 (4021331322007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402133132196 + ... + 402133132205.

It is an arithmetic number, because the mean of its divisors is an integer number (1206399396603).

Almost surely, 2^{4021331322005} is an apocalyptic number.

It is an amenable number.

4021331322005 is a deficient number, since it is larger than the sum of its proper divisors (804266264407).

4021331322005 is an equidigital number, since it uses as much as digits as its factorization.

4021331322005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804266264406.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 4021331322005 its reverse (5002231331204), we get a palindrome (9023562653209).

The spelling of 4021331322005 in words is "four trillion, twenty-one billion, three hundred thirty-one million, three hundred twenty-two thousand, five".