4334220221 has 4 divisors (see below), whose sum is σ = 4344093600. Its totient is φ = 4324346844.

The previous prime is 4334220173. The next prime is 4334220263. The reversal of 4334220221 is 1220224334.

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 4334220221 - 2²⁶ = 4267111357 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 (4334220271) 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, 4936031 + ... + 4936908.

It is an arithmetic number, because the mean of its divisors is an integer number (1086023400).

Almost surely, 2^4334220221 is an apocalyptic number.

It is an amenable number.

4334220221 is a deficient number, since it is larger than the sum of its proper divisors (9873379).

4334220221 is an equidigital number, since it uses as much as digits as its factorization.

4334220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9873378.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 4334220221 is about 65834.7949112018. The cubic root of 4334220221 is about 1630.4356321171.

Adding to 4334220221 its reverse (1220224334), we get a palindrome (5554444555).

The spelling of 4334220221 in words is "four billion, three hundred thirty-four million, two hundred twenty thousand, two hundred twenty-one".