20322241 has 2 divisors, whose sum is σ = 20322242. Its totient is φ = 20322240.

The previous prime is 20322233. The next prime is 20322257. The reversal of 20322241 is 14222302.

It is an a-pointer prime, because the next prime (20322257) can be obtained adding 20322241 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16000000 + 4322241 = 4000^2 + 2079^2 .

It is a cyclic number.

It is not a de Polignac number, because 20322241 - 2³ = 20322233 is a prime.

It is not a weakly prime, because it can be changed into another prime (20320241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161120 + 10161121.

It is an arithmetic number, because the mean of its divisors is an integer number (10161121).

Almost surely, 2^20322241 is an apocalyptic number.

It is an amenable number.

20322241 is a deficient number, since it is larger than the sum of its proper divisors (1).

20322241 is an equidigital number, since it uses as much as digits as its factorization.

20322241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 20322241 is about 4508.0196317230. The cubic root of 20322241 is about 272.8918292128.

Adding to 20322241 its reverse (14222302), we get a palindrome (34544543).

The spelling of 20322241 in words is "twenty million, three hundred twenty-two thousand, two hundred forty-one".