20020466221 has 8 divisors (see below), whose sum is σ = 23618614784. Its totient is φ = 16606838160.

The previous prime is 20020466203. The next prime is 20020466233. The reversal of 20020466221 is 12266402002.

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 20020466221 - 2¹⁵ = 20020433453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020466281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46129890 + ... + 46130323.

It is an arithmetic number, because the mean of its divisors is an integer number (2952326848).

Almost surely, 2^20020466221 is an apocalyptic number.

It is an amenable number.

20020466221 is a deficient number, since it is larger than the sum of its proper divisors (3598148563).

20020466221 is an equidigital number, since it uses as much as digits as its factorization.

20020466221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92260251.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 20020466221 its reverse (12266402002), we get a palindrome (32286868223).

The spelling of 20020466221 in words is "twenty billion, twenty million, four hundred sixty-six thousand, two hundred twenty-one".