222221343122201 has 2 divisors, whose sum is σ = 222221343122202. Its totient is φ = 222221343122200.

The previous prime is 222221343122189. The next prime is 222221343122299. The reversal of 222221343122201 is 102221343122222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221792513290000 + 428829832201 = 14892700^2 + 654851^2 .

It is a cyclic number.

It is not a de Polignac number, because 222221343122201 - 2⁴⁶ = 151852598944537 is a prime.

It is not a weakly prime, because it can be changed into another prime (222221343122101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110671561100 + 111110671561101.

It is an arithmetic number, because the mean of its divisors is an integer number (111110671561101).

Almost surely, 2^{222221343122201} is an apocalyptic number.

It is an amenable number.

222221343122201 is a deficient number, since it is larger than the sum of its proper divisors (1).

222221343122201 is an equidigital number, since it uses as much as digits as its factorization.

222221343122201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 222221343122201 its reverse (102221343122222), we get a palindrome (324442686244423).

The spelling of 222221343122201 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, three hundred forty-three million, one hundred twenty-two thousand, two hundred one".