2002302221 has 4 divisors (see below), whose sum is σ = 2002547712. Its totient is φ = 2002056732.

The previous prime is 2002302217. The next prime is 2002302271. The reversal of 2002302221 is 1222032002.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1222032002 = 2 ⋅611016001.

It is a cyclic number.

It is not a de Polignac number, because 2002302221 - 2² = 2002302217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002302196 and 2002302205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002302271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110075 + ... + 126968.

It is an arithmetic number, because the mean of its divisors is an integer number (500636928).

Almost surely, 2^2002302221 is an apocalyptic number.

It is an amenable number.

2002302221 is a deficient number, since it is larger than the sum of its proper divisors (245491).

2002302221 is an equidigital number, since it uses as much as digits as its factorization.

2002302221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245490.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2002302221 is about 44747.0917602474. The cubic root of 2002302221 is about 1260.4043006338.

Adding to 2002302221 its reverse (1222032002), we get a palindrome (3224334223).

The spelling of 2002302221 in words is "two billion, two million, three hundred two thousand, two hundred twenty-one".