20104403221 has 8 divisors (see below), whose sum is σ = 23059410560. Its totient is φ = 17170133328.

The previous prime is 20104403203. The next prime is 20104403227. The reversal of 20104403221 is 12230440102.

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 20104403221 - 2⁷ = 20104403093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20104403227) 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, 5182281 + ... + 5186158.

It is an arithmetic number, because the mean of its divisors is an integer number (2882426320).

Almost surely, 2^20104403221 is an apocalyptic number.

It is an amenable number.

20104403221 is a deficient number, since it is larger than the sum of its proper divisors (2955007339).

20104403221 is a wasteful number, since it uses less digits than its factorization.

20104403221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10368723.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20104403221 its reverse (12230440102), we get a palindrome (32334843323).

The spelling of 20104403221 in words is "twenty billion, one hundred four million, four hundred three thousand, two hundred twenty-one".