20331200221 has 8 divisors (see below), whose sum is σ = 21233983680. Its totient is φ = 19429984992.

The previous prime is 20331200191. The next prime is 20331200233. The reversal of 20331200221 is 12200213302.

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 20331200221 - 2⁷ = 20331200093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20331200195 and 20331200204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331200261) 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, 365515 + ... + 417448.

It is an arithmetic number, because the mean of its divisors is an integer number (2654247960).

Almost surely, 2^20331200221 is an apocalyptic number.

It is an amenable number.

20331200221 is a deficient number, since it is larger than the sum of its proper divisors (902783459).

20331200221 is a wasteful number, since it uses less digits than its factorization.

20331200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784115.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20331200221 its reverse (12200213302), we get a palindrome (32531413523).

The spelling of 20331200221 in words is "twenty billion, three hundred thirty-one million, two hundred thousand, two hundred twenty-one".