1002300221 has 4 divisors (see below), whose sum is σ = 1079400252. Its totient is φ = 925200192.

The previous prime is 1002300199. The next prime is 1002300223. The reversal of 1002300221 is 1220032001.

It is a happy number.

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 196308121 + 805992100 = 14011^2 + 28390^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002300221 - 2²⁶ = 935191357 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 (1002300223) 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, 38549996 + ... + 38550021.

It is an arithmetic number, because the mean of its divisors is an integer number (269850063).

Almost surely, 2^1002300221 is an apocalyptic number.

It is an amenable number.

1002300221 is a deficient number, since it is larger than the sum of its proper divisors (77100031).

1002300221 is an equidigital number, since it uses as much as digits as its factorization.

1002300221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77100030.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1002300221 is about 31659.1253985324. The cubic root of 1002300221 is about 1000.7661531927.

Adding to 1002300221 its reverse (1220032001), we get a palindrome (2222332222).

The spelling of 1002300221 in words is "one billion, two million, three hundred thousand, two hundred twenty-one".