4234134122221 has 2 divisors, whose sum is σ = 4234134122222. Its totient is φ = 4234134122220.

The previous prime is 4234134122203. The next prime is 4234134122263. The reversal of 4234134122221 is 1222214314324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3339350557321 + 894783564900 = 1827389^2 + 945930^2 .

It is a cyclic number.

It is not a de Polignac number, because 4234134122221 - 2⁵ = 4234134122189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4234134128221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2117067061110 + 2117067061111.

It is an arithmetic number, because the mean of its divisors is an integer number (2117067061111).

Almost surely, 2^{4234134122221} is an apocalyptic number.

It is an amenable number.

4234134122221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4234134122221 is an equidigital number, since it uses as much as digits as its factorization.

4234134122221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 31.

Adding to 4234134122221 its reverse (1222214314324), we get a palindrome (5456348436545).

The spelling of 4234134122221 in words is "four trillion, two hundred thirty-four billion, one hundred thirty-four million, one hundred twenty-two thousand, two hundred twenty-one".