2020213221 has 16 divisors (see below), whose sum is σ = 2905585536. Its totient is φ = 1241165376.

The previous prime is 2020213199. The next prime is 2020213249. The reversal of 2020213221 is 1223120202.

It is a happy number.

It is not a de Polignac number, because 2020213221 - 2⁷ = 2020213093 is a prime.

It is a super-3 number, since 3×2020213221³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 2020213221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020213271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18345 + ... + 66158.

It is an arithmetic number, because the mean of its divisors is an integer number (181599096).

Almost surely, 2^2020213221 is an apocalyptic number.

It is an amenable number.

2020213221 is a deficient number, since it is larger than the sum of its proper divisors (885372315).

2020213221 is a wasteful number, since it uses less digits than its factorization.

2020213221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85132.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2020213221 is about 44946.7820983883. The cubic root of 2020213221 is about 1264.1513408776.

Adding to 2020213221 its reverse (1223120202), we get a palindrome (3243333423).

The spelling of 2020213221 in words is "two billion, twenty million, two hundred thirteen thousand, two hundred twenty-one".