2020411221 has 4 divisors (see below), whose sum is σ = 2693881632. Its totient is φ = 1346940812.

The previous prime is 2020411219. The next prime is 2020411249. The reversal of 2020411221 is 1221140202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2020411221 - 2¹ = 2020411219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2020411221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020411621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336735201 + ... + 336735206.

It is an arithmetic number, because the mean of its divisors is an integer number (673470408).

Almost surely, 2^2020411221 is an apocalyptic number.

It is an amenable number.

2020411221 is a deficient number, since it is larger than the sum of its proper divisors (673470411).

2020411221 is an equidigital number, since it uses as much as digits as its factorization.

2020411221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673470410.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2020411221 is about 44948.9846492666. The cubic root of 2020411221 is about 1264.1926391237.

Adding to 2020411221 its reverse (1221140202), we get a palindrome (3241551423).

The spelling of 2020411221 in words is "two billion, twenty million, four hundred eleven thousand, two hundred twenty-one".