20301304221 has 36 divisors (see below), whose sum is σ = 32685404544. Its totient is φ = 12041907600.

The previous prime is 20301304207. The next prime is 20301304229. The reversal of 20301304221 is 12240310302.

It is not a de Polignac number, because 20301304221 - 2¹¹ = 20301302173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20301304194 and 20301304203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301304229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 172276 + ... + 265106.

It is an arithmetic number, because the mean of its divisors is an integer number (907927904).

Almost surely, 2^20301304221 is an apocalyptic number.

It is an amenable number.

20301304221 is a deficient number, since it is larger than the sum of its proper divisors (12384100323).

20301304221 is a wasteful number, since it uses less digits than its factorization.

20301304221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92942 (or 92892 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20301304221 its reverse (12240310302), we get a palindrome (32541614523).

The spelling of 20301304221 in words is "twenty billion, three hundred one million, three hundred four thousand, two hundred twenty-one".