411432221 has 2 divisors, whose sum is σ = 411432222. Its totient is φ = 411432220.

The previous prime is 411432199. The next prime is 411432223. The reversal of 411432221 is 122234114.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 282609721 + 128822500 = 16811^2 + 11350^2 .

It is a cyclic number.

It is not a de Polignac number, because 411432221 - 2⁶ = 411432157 is a prime.

It is a Sophie Germain prime.

Together with 411432223, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 411432193 and 411432202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (411432223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205716110 + 205716111.

It is an arithmetic number, because the mean of its divisors is an integer number (205716111).

Almost surely, 2^411432221 is an apocalyptic number.

It is an amenable number.

411432221 is a deficient number, since it is larger than the sum of its proper divisors (1).

411432221 is an equidigital number, since it uses as much as digits as its factorization.

411432221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 20.

The square root of 411432221 is about 20283.7920764338. The cubic root of 411432221 is about 743.7599122470.

Adding to 411432221 its reverse (122234114), we get a palindrome (533666335).

The spelling of 411432221 in words is "four hundred eleven million, four hundred thirty-two thousand, two hundred twenty-one".