2012211222211 has 2 divisors, whose sum is σ = 2012211222212. Its totient is φ = 2012211222210.

The previous prime is 2012211222209. The next prime is 2012211222253. The reversal of 2012211222211 is 1122221122102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2012211222211 - 2¹ = 2012211222209 is a prime.

Together with 2012211222209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2012211222271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006105611105 + 1006105611106.

It is an arithmetic number, because the mean of its divisors is an integer number (1006105611106).

Almost surely, 2^{2012211222211} is an apocalyptic number.

2012211222211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012211222211 is an equidigital number, since it uses as much as digits as its factorization.

2012211222211 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 2012211222211 its reverse (1122221122102), we get a palindrome (3134432344313).

The spelling of 2012211222211 in words is "two trillion, twelve billion, two hundred eleven million, two hundred twenty-two thousand, two hundred eleven".