212220122012011 has 2 divisors, whose sum is σ = 212220122012012. Its totient is φ = 212220122012010.

The previous prime is 212220122012009. The next prime is 212220122012023. The reversal of 212220122012011 is 110210221022212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212220122012011 - 2¹ = 212220122012009 is a prime.

Together with 212220122012009, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 212220122012011.

It is not a weakly prime, because it can be changed into another prime (212220122012111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106110061006005 + 106110061006006.

It is an arithmetic number, because the mean of its divisors is an integer number (106110061006006).

Almost surely, 2^{212220122012011} is an apocalyptic number.

212220122012011 is a deficient number, since it is larger than the sum of its proper divisors (1).

212220122012011 is an equidigital number, since it uses as much as digits as its factorization.

212220122012011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212220122012011 its reverse (110210221022212), we get a palindrome (322430343034223).

The spelling of 212220122012011 in words is "two hundred twelve trillion, two hundred twenty billion, one hundred twenty-two million, twelve thousand, eleven".