2213121271 has 2 divisors, whose sum is σ = 2213121272. Its totient is φ = 2213121270.

The previous prime is 2213121269. The next prime is 2213121307. The reversal of 2213121271 is 1721213122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2213121271 - 2¹ = 2213121269 is a prime.

Together with 2213121269, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2213121221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106560635 + 1106560636.

It is an arithmetic number, because the mean of its divisors is an integer number (1106560636).

Almost surely, 2^2213121271 is an apocalyptic number.

2213121271 is a deficient number, since it is larger than the sum of its proper divisors (1).

2213121271 is an equidigital number, since it uses as much as digits as its factorization.

2213121271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336, while the sum is 22.

The square root of 2213121271 is about 47043.8228782483. The cubic root of 2213121271 is about 1303.1719919343.

Adding to 2213121271 its reverse (1721213122), we get a palindrome (3934334393).

The spelling of 2213121271 in words is "two billion, two hundred thirteen million, one hundred twenty-one thousand, two hundred seventy-one".