212110111122011 has 2 divisors, whose sum is σ = 212110111122012. Its totient is φ = 212110111122010.

The previous prime is 212110111121897. The next prime is 212110111122067. The reversal of 212110111122011 is 110221111011212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212110111122011 is a prime.

It is not a weakly prime, because it can be changed into another prime (212110111122071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106055055561005 + 106055055561006.

It is an arithmetic number, because the mean of its divisors is an integer number (106055055561006).

Almost surely, 2^{212110111122011} is an apocalyptic number.

212110111122011 is a deficient number, since it is larger than the sum of its proper divisors (1).

212110111122011 is an equidigital number, since it uses as much as digits as its factorization.

212110111122011 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 17.

Adding to 212110111122011 its reverse (110221111011212), we get a palindrome (322331222133223).

The spelling of 212110111122011 in words is "two hundred twelve trillion, one hundred ten billion, one hundred eleven million, one hundred twenty-two thousand, eleven".