422104021 has 8 divisors (see below), whose sum is σ = 424962720. Its totient is φ = 419254608.

The previous prime is 422104009. The next prime is 422104043. The reversal of 422104021 is 120401224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 422104021 - 2⁹ = 422103509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422103986 and 422104004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422104121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104970 + ... + 108916.

It is an arithmetic number, because the mean of its divisors is an integer number (53120340).

Almost surely, 2^422104021 is an apocalyptic number.

It is an amenable number.

422104021 is a deficient number, since it is larger than the sum of its proper divisors (2858699).

422104021 is a wasteful number, since it uses less digits than its factorization.

422104021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4643.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 422104021 is about 20545.1702596985. The cubic root of 422104021 is about 750.1356915971.

Adding to 422104021 its reverse (120401224), we get a palindrome (542505245).

The spelling of 422104021 in words is "four hundred twenty-two million, one hundred four thousand, twenty-one".