2224420221 has 16 divisors (see below), whose sum is σ = 3065059328. Its totient is φ = 1433473200.

The previous prime is 2224420213. The next prime is 2224420223. The reversal of 2224420221 is 1220244222.

It is not a de Polignac number, because 2224420221 - 2³ = 2224420213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2224420223) 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, 71166 + ... + 97536.

It is an arithmetic number, because the mean of its divisors is an integer number (191566208).

Almost surely, 2^2224420221 is an apocalyptic number.

It is an amenable number.

2224420221 is a deficient number, since it is larger than the sum of its proper divisors (840639107).

2224420221 is a wasteful number, since it uses less digits than its factorization.

2224420221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27312.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 2224420221 is about 47163.7596147720. The cubic root of 2224420221 is about 1305.3859823308.

Adding to 2224420221 its reverse (1220244222), we get a palindrome (3444664443).

The spelling of 2224420221 in words is "two billion, two hundred twenty-four million, four hundred twenty thousand, two hundred twenty-one".