4022004221 has 8 divisors (see below), whose sum is σ = 4036598784. Its totient is φ = 4007432880.

The previous prime is 4022004193. The next prime is 4022004241. The reversal of 4022004221 is 1224002204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4022004221 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 4022004221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4022004241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388316 + ... + 398538.

It is an arithmetic number, because the mean of its divisors is an integer number (504574848).

Almost surely, 2^4022004221 is an apocalyptic number.

It is an amenable number.

4022004221 is a deficient number, since it is larger than the sum of its proper divisors (14594563).

4022004221 is a wasteful number, since it uses less digits than its factorization.

4022004221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11611.

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

The square root of 4022004221 is about 63419.2732613675. The cubic root of 4022004221 is about 1590.3065243721.

Adding to 4022004221 its reverse (1224002204), we get a palindrome (5246006425).

The spelling of 4022004221 in words is "four billion, twenty-two million, four thousand, two hundred twenty-one".