434132221 has 2 divisors, whose sum is σ = 434132222. Its totient is φ = 434132220.

The previous prime is 434132191. The next prime is 434132243. The reversal of 434132221 is 122231434.

It is an a-pointer prime, because the next prime (434132243) can be obtained adding 434132221 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 425803225 + 8328996 = 20635^2 + 2886^2 .

It is a cyclic number.

It is not a de Polignac number, because 434132221 - 2⁵ = 434132189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 434132192 and 434132201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434132021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217066110 + 217066111.

It is an arithmetic number, because the mean of its divisors is an integer number (217066111).

Almost surely, 2^434132221 is an apocalyptic number.

It is an amenable number.

434132221 is a deficient number, since it is larger than the sum of its proper divisors (1).

434132221 is an equidigital number, since it uses as much as digits as its factorization.

434132221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 22.

The square root of 434132221 is about 20835.8398198873. The cubic root of 434132221 is about 757.1943069735.

Adding to 434132221 its reverse (122231434), we get a palindrome (556363655).

The spelling of 434132221 in words is "four hundred thirty-four million, one hundred thirty-two thousand, two hundred twenty-one".