20301022302221 has 4 divisors (see below), whose sum is σ = 20301161560092. Its totient is φ = 20300883044352.

The previous prime is 20301022302217. The next prime is 20301022302269. The reversal of 20301022302221 is 12220322010302.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19610602564996 + 690419737225 = 4428386^2 + 830915^2 .

It is a cyclic number.

It is not a de Polignac number, because 20301022302221 - 2² = 20301022302217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20301022302193 and 20301022302202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301022308221) 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, 69410036 + ... + 69701901.

It is an arithmetic number, because the mean of its divisors is an integer number (5075290390023).

Almost surely, 2^{20301022302221} is an apocalyptic number.

It is an amenable number.

20301022302221 is a deficient number, since it is larger than the sum of its proper divisors (139257871).

20301022302221 is a wasteful number, since it uses less digits than its factorization.

20301022302221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139257870.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20301022302221 its reverse (12220322010302), we get a palindrome (32521344312523).

The spelling of 20301022302221 in words is "twenty trillion, three hundred one billion, twenty-two million, three hundred two thousand, two hundred twenty-one".