2211111021271 has 2 divisors, whose sum is σ = 2211111021272. Its totient is φ = 2211111021270.

The previous prime is 2211111021209. The next prime is 2211111021319. The reversal of 2211111021271 is 1721201111122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2211111021271 - 2²⁵ = 2211077466839 is a prime.

It is a super-2 number, since 2×2211111021271² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211111027271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105555510635 + 1105555510636.

It is an arithmetic number, because the mean of its divisors is an integer number (1105555510636).

Almost surely, 2^{2211111021271} is an apocalyptic number.

2211111021271 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211111021271 is an equidigital number, since it uses as much as digits as its factorization.

2211111021271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 22.

Adding to 2211111021271 its reverse (1721201111122), we get a palindrome (3932312132393).

The spelling of 2211111021271 in words is "two trillion, two hundred eleven billion, one hundred eleven million, twenty-one thousand, two hundred seventy-one".