434344214221 has 2 divisors, whose sum is σ = 434344214222. Its totient is φ = 434344214220.

The previous prime is 434344214207. The next prime is 434344214233. The reversal of 434344214221 is 122412443434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 433977912900 + 366301321 = 658770^2 + 19139^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434344214221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434344214261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217172107110 + 217172107111.

It is an arithmetic number, because the mean of its divisors is an integer number (217172107111).

Almost surely, 2^434344214221 is an apocalyptic number.

It is an amenable number.

434344214221 is a deficient number, since it is larger than the sum of its proper divisors (1).

434344214221 is an equidigital number, since it uses as much as digits as its factorization.

434344214221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73728, while the sum is 34.

Adding to 434344214221 its reverse (122412443434), we get a palindrome (556756657655).

The spelling of 434344214221 in words is "four hundred thirty-four billion, three hundred forty-four million, two hundred fourteen thousand, two hundred twenty-one".