2012211122011 has 2 divisors, whose sum is σ = 2012211122012.
Its totient is φ = 2012211122010.
The previous prime is 2012211121901. The next prime is 2012211122017. The reversal of 2012211122011 is 1102211122102.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 2012211122011 - 29 = 2012211121499 is a prime.
It is not a weakly prime, because it can be changed into another prime (2012211122017) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006105561005 + 1006105561006.
It is an arithmetic number, because the mean of its divisors is an integer number (1006105561006).
Almost surely, 22012211122011 is an apocalyptic number.
2012211122011 is a deficient number, since it is larger than the sum of its proper divisors (1).
2012211122011 is an equidigital number, since it uses as much as digits as its factorization.
2012211122011 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 32, while the sum is 16.
Adding to 2012211122011 its reverse (1102211122102), we get a palindrome (3114422244113).
Subtracting from 2012211122011 its reverse (1102211122102), we obtain a palindrome (909999999909).
The spelling of 2012211122011 in words is "two trillion, twelve billion, two hundred eleven million, one hundred twenty-two thousand, eleven".