4021440241001 has 4 divisors (see below), whose sum is σ = 4066624962900. Its totient is φ = 3976255519104.

The previous prime is 4021440240991. The next prime is 4021440241019. The reversal of 4021440241001 is 1001420441204.

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 1987750335376 + 2033689905625 = 1409876^2 + 1426075^2 .

It is a cyclic number.

It is not a de Polignac number, because 4021440241001 - 2¹⁰ = 4021440239977 is a prime.

It is a super-2 number, since 2×4021440241001² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4021440241201) 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, 22592360816 + ... + 22592360993.

It is an arithmetic number, because the mean of its divisors is an integer number (1016656240725).

Almost surely, 2^{4021440241001} is an apocalyptic number.

It is an amenable number.

4021440241001 is a deficient number, since it is larger than the sum of its proper divisors (45184721899).

4021440241001 is an equidigital number, since it uses as much as digits as its factorization.

4021440241001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45184721898.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 4021440241001 its reverse (1001420441204), we get a palindrome (5022860682205).

The spelling of 4021440241001 in words is "four trillion, twenty-one billion, four hundred forty million, two hundred forty-one thousand, one".