4021424004401 has 4 divisors (see below), whose sum is σ = 4021467643632. Its totient is φ = 4021380365172.

The previous prime is 4021424004391. The next prime is 4021424004431. The reversal of 4021424004401 is 1044004241204.

4021424004401 is digitally balanced in base 2, 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, 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 4021424004401 - 2²² = 4021419810097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4021424004431) 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, 21681095 + ... + 21865788.

It is an arithmetic number, because the mean of its divisors is an integer number (1005366910908).

Almost surely, 2^{4021424004401} is an apocalyptic number.

It is an amenable number.

4021424004401 is a deficient number, since it is larger than the sum of its proper divisors (43639231).

4021424004401 is an equidigital number, since it uses as much as digits as its factorization.

4021424004401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43639230.

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 4021424004401 its reverse (1044004241204), we get a palindrome (5065428245605).

The spelling of 4021424004401 in words is "four trillion, twenty-one billion, four hundred twenty-four million, four thousand, four hundred one".