2212201111111 has 2 divisors, whose sum is σ = 2212201111112. Its totient is φ = 2212201111110.

The previous prime is 2212201111097. The next prime is 2212201111123. The reversal of 2212201111111 is 1111111022122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2212201111111 - 2¹⁷ = 2212200980039 is a prime.

2212201111111 is a modest number, since divided by 1111111 gives 221220 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2212201117111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106100555555 + 1106100555556.

It is an arithmetic number, because the mean of its divisors is an integer number (1106100555556).

Almost surely, 2^{2212201111111} is an apocalyptic number.

2212201111111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212201111111 is an equidigital number, since it uses as much as digits as its factorization.

2212201111111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 2212201111111 its reverse (1111111022122), we get a palindrome (3323312133233).

It can be divided in two parts, 22122011 and 11111, that added together give a palindrome (22133122).

The spelling of 2212201111111 in words is "two trillion, two hundred twelve billion, two hundred one million, one hundred eleven thousand, one hundred eleven".