20022022230221 has 12 divisors (see below), whose sum is σ = 22012071620700. Its totient is φ = 18198204013440.

The previous prime is 20022022230191. The next prime is 20022022230239. The reversal of 20022022230221 is 12203222022002.

It can be written as a sum of positive squares in 2 ways, for example, as 5674214607721 + 14347807622500 = 2382061^2 + 3787850^2 .

It is a de Polignac number, because none of the positive numbers 2^k-20022022230221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20022022230193 and 20022022230202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022022230121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15911306 + ... + 17123483.

It is an arithmetic number, because the mean of its divisors is an integer number (1834339301725).

Almost surely, 2^{20022022230221} is an apocalyptic number.

It is an amenable number.

20022022230221 is a deficient number, since it is larger than the sum of its proper divisors (1990049390479).

20022022230221 is a wasteful number, since it uses less digits than its factorization.

20022022230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33039820 (or 33039809 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20022022230221 its reverse (12203222022002), we get a palindrome (32225244252223).

The spelling of 20022022230221 in words is "twenty trillion, twenty-two billion, twenty-two million, two hundred thirty thousand, two hundred twenty-one".