4021404422001 has 4 divisors (see below), whose sum is σ = 5361872562672. Its totient is φ = 2680936281332.

The previous prime is 4021404421987. The next prime is 4021404422033. The reversal of 4021404422001 is 1002244041204.

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 4021404422001 - 2⁷ = 4021404421873 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4021404422051) 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, 670234070331 + ... + 670234070336.

It is an arithmetic number, because the mean of its divisors is an integer number (1340468140668).

Almost surely, 2^{4021404422001} is an apocalyptic number.

It is an amenable number.

4021404422001 is a deficient number, since it is larger than the sum of its proper divisors (1340468140671).

4021404422001 is a wasteful number, since it uses less digits than its factorization.

4021404422001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340468140670.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 4021404422001 its reverse (1002244041204), we get a palindrome (5023648463205).

The spelling of 4021404422001 in words is "four trillion, twenty-one billion, four hundred four million, four hundred twenty-two thousand, one".