2211211213111 has 2 divisors, whose sum is σ = 2211211213112. Its totient is φ = 2211211213110.

The previous prime is 2211211213097. The next prime is 2211211213117. The reversal of 2211211213111 is 1113121121122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2211211213111 - 2¹¹ = 2211211211063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211211213117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105605606555 + 1105605606556.

It is an arithmetic number, because the mean of its divisors is an integer number (1105605606556).

Almost surely, 2^{2211211213111} is an apocalyptic number.

2211211213111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211211213111 is an equidigital number, since it uses as much as digits as its factorization.

2211211213111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48, while the sum is 19.

Adding to 2211211213111 its reverse (1113121121122), we get a palindrome (3324332334233).

The spelling of 2211211213111 in words is "two trillion, two hundred eleven billion, two hundred eleven million, two hundred thirteen thousand, one hundred eleven".