2020221101221 has 8 divisors (see below), whose sum is σ = 2043847190304. Its totient is φ = 1996666069200.

The previous prime is 2020221101207. The next prime is 2020221101263. The reversal of 2020221101221 is 1221011220202.

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 a de Polignac number, because none of the positive numbers 2^k-2020221101221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020221101195 and 2020221101204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020221101621) 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 7 ways as a sum of consecutive naturals, for example, 17707071 + ... + 17820796.

It is an arithmetic number, because the mean of its divisors is an integer number (255480898788).

Almost surely, 2^{2020221101221} is an apocalyptic number.

It is an amenable number.

2020221101221 is a deficient number, since it is larger than the sum of its proper divisors (23626089083).

2020221101221 is a wasteful number, since it uses less digits than its factorization.

2020221101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35528531.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2020221101221 its reverse (1221011220202), we get a palindrome (3241232321423).

The spelling of 2020221101221 in words is "two trillion, twenty billion, two hundred twenty-one million, one hundred one thousand, two hundred twenty-one".