211222202122271 has 2 divisors, whose sum is σ = 211222202122272. Its totient is φ = 211222202122270.

The previous prime is 211222202122249. The next prime is 211222202122273. The reversal of 211222202122271 is 172221202222112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211222202122271 is a prime.

It is a super-2 number, since 2×211222202122271² (a number of 29 digits) contains 22 as substring.

Together with 211222202122273, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211222202122273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105611101061135 + 105611101061136.

It is an arithmetic number, because the mean of its divisors is an integer number (105611101061136).

Almost surely, 2^{211222202122271} is an apocalyptic number.

211222202122271 is a deficient number, since it is larger than the sum of its proper divisors (1).

211222202122271 is an equidigital number, since it uses as much as digits as its factorization.

211222202122271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 29.

Adding to 211222202122271 its reverse (172221202222112), we get a palindrome (383443404344383).

The spelling of 211222202122271 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred two million, one hundred twenty-two thousand, two hundred seventy-one".