21334222271 has 2 divisors, whose sum is σ = 21334222272. Its totient is φ = 21334222270.

The previous prime is 21334222241. The next prime is 21334222279. The reversal of 21334222271 is 17222243312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21334222271 - 2³⁰ = 20260480447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21334222279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10667111135 + 10667111136.

It is an arithmetic number, because the mean of its divisors is an integer number (10667111136).

Almost surely, 2^21334222271 is an apocalyptic number.

21334222271 is a deficient number, since it is larger than the sum of its proper divisors (1).

21334222271 is an equidigital number, since it uses as much as digits as its factorization.

21334222271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 29.

Adding to 21334222271 its reverse (17222243312), we get a palindrome (38556465583).

The spelling of 21334222271 in words is "twenty-one billion, three hundred thirty-four million, two hundred twenty-two thousand, two hundred seventy-one".