4022240221 has 4 divisors (see below), whose sum is σ = 4023389344. Its totient is φ = 4021091100.

The previous prime is 4022240191. The next prime is 4022240237. The reversal of 4022240221 is 1220422204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4022240221 - 2¹³ = 4022232029 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 (4022240291) 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, 569295 + ... + 576316.

It is an arithmetic number, because the mean of its divisors is an integer number (1005847336).

Almost surely, 2^4022240221 is an apocalyptic number.

It is an amenable number.

4022240221 is a deficient number, since it is larger than the sum of its proper divisors (1149123).

4022240221 is a wasteful number, since it uses less digits than its factorization.

4022240221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149122.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 4022240221 is about 63421.1338671897. The cubic root of 4022240221 is about 1590.3376286822.

Adding to 4022240221 its reverse (1220422204), we get a palindrome (5242662425).

The spelling of 4022240221 in words is "four billion, twenty-two million, two hundred forty thousand, two hundred twenty-one".