2422020221 has 16 divisors (see below), whose sum is σ = 2574633600. Its totient is φ = 2273755968.

The previous prime is 2422020217. The next prime is 2422020239. The reversal of 2422020221 is 1220202242.

It is a cyclic number.

It is not a de Polignac number, because 2422020221 - 2² = 2422020217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2422020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2422022221) 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, 263735 + ... + 272763.

It is an arithmetic number, because the mean of its divisors is an integer number (160914600).

Almost surely, 2^2422020221 is an apocalyptic number.

It is an amenable number.

2422020221 is a deficient number, since it is larger than the sum of its proper divisors (152613379).

2422020221 is a wasteful number, since it uses less digits than its factorization.

2422020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9268.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 2422020221 is about 49214.0246372922. The cubic root of 2422020221 is about 1342.9481797144.

Adding to 2422020221 its reverse (1220202242), we get a palindrome (3642222463).

The spelling of 2422020221 in words is "two billion, four hundred twenty-two million, twenty thousand, two hundred twenty-one".