4002302221 has 4 divisors (see below), whose sum is σ = 4039020700. Its totient is φ = 3965583744.

The previous prime is 4002302201. The next prime is 4002302233. The reversal of 4002302221 is 1222032004.

4002302221 is digitally balanced in base 2, 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 2823753321 + 1178548900 = 53139^2 + 34330^2 .

It is a cyclic number.

It is not a de Polignac number, because 4002302221 - 2¹⁷ = 4002171149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4002302195 and 4002302204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002302201) 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, 18359076 + ... + 18359293.

It is an arithmetic number, because the mean of its divisors is an integer number (1009755175).

Almost surely, 2^4002302221 is an apocalyptic number.

It is an amenable number.

4002302221 is a deficient number, since it is larger than the sum of its proper divisors (36718479).

4002302221 is a wasteful number, since it uses less digits than its factorization.

4002302221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36718478.

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

The square root of 4002302221 is about 63263.7512403430. The cubic root of 4002302221 is about 1587.7055392290.

Adding to 4002302221 its reverse (1222032004), we get a palindrome (5224334225).

The spelling of 4002302221 in words is "four billion, two million, three hundred two thousand, two hundred twenty-one".