1002223223321 has 2 divisors, whose sum is σ = 1002223223322. Its totient is φ = 1002223223320.

The previous prime is 1002223223317. The next prime is 1002223223387. The reversal of 1002223223321 is 1233223222001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1001928929296 + 294294025 = 1000964^2 + 17155^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002223223321 - 2² = 1002223223317 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002223223021) 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 as a sum of consecutive naturals, namely, 501111611660 + 501111611661.

It is an arithmetic number, because the mean of its divisors is an integer number (501111611661).

Almost surely, 2^{1002223223321} is an apocalyptic number.

It is an amenable number.

1002223223321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002223223321 is an equidigital number, since it uses as much as digits as its factorization.

1002223223321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 1002223223321 its reverse (1233223222001), we get a palindrome (2235446445322).

The spelling of 1002223223321 in words is "one trillion, two billion, two hundred twenty-three million, two hundred twenty-three thousand, three hundred twenty-one".