20002020000221 has 8 divisors (see below), whose sum is σ = 22859519400960. Its totient is φ = 17144537592528.

The previous prime is 20002020000203. The next prime is 20002020000257. The reversal of 20002020000221 is 12200002020002.

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 20002020000221 - 2²² = 20002015805917 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 (20002020000271) 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, 1617341 + ... + 6528386.

It is an arithmetic number, because the mean of its divisors is an integer number (2857439925120).

Almost surely, 2^{20002020000221} is an apocalyptic number.

It is an amenable number.

20002020000221 is a deficient number, since it is larger than the sum of its proper divisors (2857499400739).

20002020000221 is an equidigital number, since it uses as much as digits as its factorization.

20002020000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8496523.

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20002020000221 its reverse (12200002020002), we get a palindrome (32202022020223).

The spelling of 20002020000221 in words is "twenty trillion, two billion, twenty million, two hundred twenty-one", and thus it is an aban number.