2020212221 has 8 divisors (see below), whose sum is σ = 2251630080. Its totient is φ = 1801303488.

The previous prime is 2020212211. The next prime is 2020212251. The reversal of 2020212221 is 1222120202.

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 2020212221 - 2¹⁰ = 2020211197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020212196 and 2020212205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020212211) 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, 3126941 + ... + 3127586.

It is an arithmetic number, because the mean of its divisors is an integer number (281453760).

Almost surely, 2^2020212221 is an apocalyptic number.

It is an amenable number.

2020212221 is a deficient number, since it is larger than the sum of its proper divisors (231417859).

2020212221 is a wasteful number, since it uses less digits than its factorization.

2020212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6254563.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2020212221 is about 44946.7709741200. The cubic root of 2020212221 is about 1264.1511322938.

Adding to 2020212221 its reverse (1222120202), we get a palindrome (3242332423).

It can be divided in two parts, 20202 and 12221, that multiplied together give a palindrome (246888642).

The spelling of 2020212221 in words is "two billion, twenty million, two hundred twelve thousand, two hundred twenty-one".