2020013221 has 16 divisors (see below), whose sum is σ = 2085160320. Its totient is φ = 1956052800.

The previous prime is 2020013147. The next prime is 2020013251. The reversal of 2020013221 is 1223100202.

It is a cyclic number.

It is not a de Polignac number, because 2020013221 - 2¹¹ = 2020011173 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 (2020013251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1383790 + ... + 1385248.

It is an arithmetic number, because the mean of its divisors is an integer number (130322520).

Almost surely, 2^2020013221 is an apocalyptic number.

It is an amenable number.

2020013221 is a deficient number, since it is larger than the sum of its proper divisors (65147099).

2020013221 is a wasteful number, since it uses less digits than its factorization.

2020013221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2020013221 is about 44944.5571899424. The cubic root of 2020013221 is about 1264.1096227379.

Adding to 2020013221 its reverse (1223100202), we get a palindrome (3243113423).

The spelling of 2020013221 in words is "two billion, twenty million, thirteen thousand, two hundred twenty-one".