20322233 has 2 divisors, whose sum is σ = 20322234. Its totient is φ = 20322232.

The previous prime is 20322227. The next prime is 20322241. The reversal of 20322233 is 33222302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20322064 + 169 = 4508^2 + 13^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20322233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20322433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161116 + 10161117.

It is an arithmetic number, because the mean of its divisors is an integer number (10161117).

Almost surely, 2^20322233 is an apocalyptic number.

It is an amenable number.

20322233 is a deficient number, since it is larger than the sum of its proper divisors (1).

20322233 is an equidigital number, since it uses as much as digits as its factorization.

20322233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 20322233 is about 4508.0187444153. The cubic root of 20322233 is about 272.8917934042.

Adding to 20322233 its reverse (33222302), we get a palindrome (53544535).

The spelling of 20322233 in words is "twenty million, three hundred twenty-two thousand, two hundred thirty-three".