222003121321 has 4 divisors (see below), whose sum is σ = 222726258832. Its totient is φ = 221279983812.

The previous prime is 222003121313. The next prime is 222003121331. The reversal of 222003121321 is 123121300222.

222003121321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 222003121321 - 2³ = 222003121313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222003121331) 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, 361568295 + ... + 361568908.

It is an arithmetic number, because the mean of its divisors is an integer number (55681564708).

Almost surely, 2^222003121321 is an apocalyptic number.

It is an amenable number.

222003121321 is a deficient number, since it is larger than the sum of its proper divisors (723137511).

222003121321 is an equidigital number, since it uses as much as digits as its factorization.

222003121321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723137510.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 222003121321 its reverse (123121300222), we get a palindrome (345124421543).

The spelling of 222003121321 in words is "two hundred twenty-two billion, three million, one hundred twenty-one thousand, three hundred twenty-one".