2211456541111 has 2 divisors, whose sum is σ = 2211456541112. Its totient is φ = 2211456541110.

The previous prime is 2211456541109. The next prime is 2211456541123. The reversal of 2211456541111 is 1111456541122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2211456541111 - 2¹ = 2211456541109 is a prime.

It is a super-2 number, since 2×2211456541111² (a number of 25 digits) contains 22 as substring.

Together with 2211456541109, 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 (2211456544111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105728270555 + 1105728270556.

It is an arithmetic number, because the mean of its divisors is an integer number (1105728270556).

Almost surely, 2^{2211456541111} is an apocalyptic number.

2211456541111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211456541111 is an equidigital number, since it uses as much as digits as its factorization.

2211456541111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9600, while the sum is 34.

The spelling of 2211456541111 in words is "two trillion, two hundred eleven billion, four hundred fifty-six million, five hundred forty-one thousand, one hundred eleven".