4022003221 has 4 divisors (see below), whose sum is σ = 4023346444. Its totient is φ = 4020660000.

The previous prime is 4022003213. The next prime is 4022003309. The reversal of 4022003221 is 1223002204.

4022003221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2551664196 + 1470339025 = 50514^2 + 38345^2 .

It is a cyclic number.

It is not a de Polignac number, because 4022003221 - 2³ = 4022003213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4022003195 and 4022003204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4022007221) 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, 667110 + ... + 673111.

It is an arithmetic number, because the mean of its divisors is an integer number (1005836611).

Almost surely, 2^4022003221 is an apocalyptic number.

It is an amenable number.

4022003221 is a deficient number, since it is larger than the sum of its proper divisors (1343223).

4022003221 is a wasteful number, since it uses less digits than its factorization.

4022003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343222.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 4022003221 is about 63419.2653773284. The cubic root of 4022003221 is about 1590.3063925716.

Adding to 4022003221 its reverse (1223002204), we get a palindrome (5245005425).

The spelling of 4022003221 in words is "four billion, twenty-two million, three thousand, two hundred twenty-one".