222002230321 has 2 divisors, whose sum is σ = 222002230322. Its totient is φ = 222002230320.

The previous prime is 222002230319. The next prime is 222002230409. The reversal of 222002230321 is 123032200222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216470589696 + 5531640625 = 465264^2 + 74375^2 .

It is a cyclic number.

It is not a de Polignac number, because 222002230321 - 2¹ = 222002230319 is a prime.

Together with 222002230319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (222002230421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111001115160 + 111001115161.

It is an arithmetic number, because the mean of its divisors is an integer number (111001115161).

Almost surely, 2^222002230321 is an apocalyptic number.

It is an amenable number.

222002230321 is a deficient number, since it is larger than the sum of its proper divisors (1).

222002230321 is an equidigital number, since it uses as much as digits as its factorization.

222002230321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 222002230321 its reverse (123032200222), we get a palindrome (345034430543).

The spelling of 222002230321 in words is "two hundred twenty-two billion, two million, two hundred thirty thousand, three hundred twenty-one".