434100000221 has 2 divisors, whose sum is σ = 434100000222. Its totient is φ = 434100000220.

The previous prime is 434100000211. The next prime is 434100000223. The reversal of 434100000221 is 122000001434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 416909119225 + 17190880996 = 645685^2 + 131114^2 .

It is a cyclic number.

It is not a de Polignac number, because 434100000221 - 2¹⁸ = 434099738077 is a prime.

Together with 434100000223, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 434100000221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434100000223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217050000110 + 217050000111.

It is an arithmetic number, because the mean of its divisors is an integer number (217050000111).

Almost surely, 2^434100000221 is an apocalyptic number.

It is an amenable number.

434100000221 is a deficient number, since it is larger than the sum of its proper divisors (1).

434100000221 is an equidigital number, since it uses as much as digits as its factorization.

434100000221 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 17.

Adding to 434100000221 its reverse (122000001434), we get a palindrome (556100001655).

The spelling of 434100000221 in words is "four hundred thirty-four billion, one hundred million, two hundred twenty-one", and thus it is an aban number.