2020121123221 has 8 divisors (see below), whose sum is σ = 2020872847680. Its totient is φ = 2019369511392.

The previous prime is 2020121123197. The next prime is 2020121123231. The reversal of 2020121123221 is 1223211210202.

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 2020121123221 - 2¹¹ = 2020121121173 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 (2020121123231) 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, 53311960 + ... + 53349838.

It is an arithmetic number, because the mean of its divisors is an integer number (252609105960).

Almost surely, 2^{2020121123221} is an apocalyptic number.

It is an amenable number.

2020121123221 is a deficient number, since it is larger than the sum of its proper divisors (751724459).

2020121123221 is a wasteful number, since it uses less digits than its factorization.

2020121123221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56315.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2020121123221 its reverse (1223211210202), we get a palindrome (3243332333423).

The spelling of 2020121123221 in words is "two trillion, twenty billion, one hundred twenty-one million, one hundred twenty-three thousand, two hundred twenty-one".