1002243221 has 8 divisors (see below), whose sum is σ = 1145817024. Its totient is φ = 858768480.

The previous prime is 1002243191. The next prime is 1002243241. The reversal of 1002243221 is 1223422001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1002243221 - 2⁶ = 1002243157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1002243221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002243241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1640 + ... + 44801.

It is an arithmetic number, because the mean of its divisors is an integer number (143227128).

Almost surely, 2^1002243221 is an apocalyptic number.

It is an amenable number.

1002243221 is a deficient number, since it is larger than the sum of its proper divisors (143573803).

1002243221 is an equidigital number, since it uses as much as digits as its factorization.

1002243221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49531.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1002243221 is about 31658.2251713516. The cubic root of 1002243221 is about 1000.7471819135.

Adding to 1002243221 its reverse (1223422001), we get a palindrome (2225665222).

The spelling of 1002243221 in words is "one billion, two million, two hundred forty-three thousand, two hundred twenty-one".