22205201 has 2 divisors, whose sum is σ = 22205202. Its totient is φ = 22205200.

The previous prime is 22205177. The next prime is 22205203. The reversal of 22205201 is 10250222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11971600 + 10233601 = 3460^2 + 3199^2 .

It is a cyclic number.

It is not a de Polignac number, because 22205201 - 2⁶ = 22205137 is a prime.

Together with 22205203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22205203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11102600 + 11102601.

It is an arithmetic number, because the mean of its divisors is an integer number (11102601).

Almost surely, 2^22205201 is an apocalyptic number.

It is an amenable number.

22205201 is a deficient number, since it is larger than the sum of its proper divisors (1).

22205201 is an equidigital number, since it uses as much as digits as its factorization.

22205201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 22205201 is about 4712.2394888206. The cubic root of 22205201 is about 281.0724221582.

Adding to 22205201 its reverse (10250222), we get a palindrome (32455423).

The spelling of 22205201 in words is "twenty-two million, two hundred five thousand, two hundred one".