20011022030221 has 8 divisors (see below), whose sum is σ = 20352981176640. Its totient is φ = 19669155859968.

The previous prime is 20011022030191. The next prime is 20011022030357. The reversal of 20011022030221 is 12203022011002.

It is a happy number.

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 20011022030221 - 2¹⁵ = 20011021997453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20011022030195 and 20011022030204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011022030621) 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, 22809841 + ... + 23670886.

It is an arithmetic number, because the mean of its divisors is an integer number (2544122647080).

Almost surely, 2^{20011022030221} is an apocalyptic number.

It is an amenable number.

20011022030221 is a deficient number, since it is larger than the sum of its proper divisors (341959146419).

20011022030221 is an equidigital number, since it uses as much as digits as its factorization.

20011022030221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46488083.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20011022030221 its reverse (12203022011002), we get a palindrome (32214044041223).

The spelling of 20011022030221 in words is "twenty trillion, eleven billion, twenty-two million, thirty thousand, two hundred twenty-one".