22352201 has 2 divisors, whose sum is σ = 22352202. Its totient is φ = 22352200.

The previous prime is 22352179. The next prime is 22352203. The reversal of 22352201 is 10225322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14258176 + 8094025 = 3776^2 + 2845^2 .

It is a cyclic number.

It is not a de Polignac number, because 22352201 - 2¹⁰ = 22351177 is a prime.

It is a Sophie Germain prime.

Together with 22352203, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22352201.

It is not a weakly prime, because it can be changed into another prime (22352203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11176100 + 11176101.

It is an arithmetic number, because the mean of its divisors is an integer number (11176101).

Almost surely, 2^22352201 is an apocalyptic number.

It is an amenable number.

22352201 is a deficient number, since it is larger than the sum of its proper divisors (1).

22352201 is an equidigital number, since it uses as much as digits as its factorization.

22352201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 22352201 is about 4727.8114387103. The cubic root of 22352201 is about 281.6912982595.

Adding to 22352201 its reverse (10225322), we get a palindrome (32577523).

The spelling of 22352201 in words is "twenty-two million, three hundred fifty-two thousand, two hundred one".