1002234221 has 4 divisors (see below), whose sum is σ = 1003908000. Its totient is φ = 1000560444.

The previous prime is 1002234199. The next prime is 1002234227. The reversal of 1002234221 is 1224322001.

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: 1224322001 = 7 ⋅174903143.

It is a cyclic number.

It is not a de Polignac number, because 1002234221 - 2¹⁸ = 1001972077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1002234221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002234227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 835991 + ... + 837188.

It is an arithmetic number, because the mean of its divisors is an integer number (250977000).

Almost surely, 2^1002234221 is an apocalyptic number.

It is an amenable number.

1002234221 is a deficient number, since it is larger than the sum of its proper divisors (1673779).

1002234221 is an equidigital number, since it uses as much as digits as its factorization.

1002234221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673778.

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

The square root of 1002234221 is about 31658.0830278777. The cubic root of 1002234221 is about 1000.7441863826.

Adding to 1002234221 its reverse (1224322001), we get a palindrome (2226556222).

The spelling of 1002234221 in words is "one billion, two million, two hundred thirty-four thousand, two hundred twenty-one".