2020402221 has 16 divisors (see below), whose sum is σ = 2836784640. Its totient is φ = 1275534000.

The previous prime is 2020402217. The next prime is 2020402229. The reversal of 2020402221 is 1222040202.

2020402221 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2020402221 - 2² = 2020402217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2020402221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020402229) 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, 179856 + ... + 190758.

It is an arithmetic number, because the mean of its divisors is an integer number (177299040).

Almost surely, 2^2020402221 is an apocalyptic number.

It is an amenable number.

2020402221 is a deficient number, since it is larger than the sum of its proper divisors (816382419).

2020402221 is a wasteful number, since it uses less digits than its factorization.

2020402221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14176.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2020402221 is about 44948.8845356589. The cubic root of 2020402221 is about 1264.1907619893.

Adding to 2020402221 its reverse (1222040202), we get a palindrome (3242442423).

The spelling of 2020402221 in words is "two billion, twenty million, four hundred two thousand, two hundred twenty-one".