11212012122011 has 2 divisors, whose sum is σ = 11212012122012. Its totient is φ = 11212012122010.

The previous prime is 11212012122007. The next prime is 11212012122131. The reversal of 11212012122011 is 11022121021211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11212012122011 - 2² = 11212012122007 is a prime.

It is not a weakly prime, because it can be changed into another prime (11212012122511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606006061005 + 5606006061006.

It is an arithmetic number, because the mean of its divisors is an integer number (5606006061006).

Almost surely, 2^{11212012122011} is an apocalyptic number.

11212012122011 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212012122011 is an equidigital number, since it uses as much as digits as its factorization.

11212012122011 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 17.

Adding to 11212012122011 its reverse (11022121021211), we get a palindrome (22234133143222).

The spelling of 11212012122011 in words is "eleven trillion, two hundred twelve billion, twelve million, one hundred twenty-two thousand, eleven".