2212221220211 has 2 divisors, whose sum is σ = 2212221220212. Its totient is φ = 2212221220210.

The previous prime is 2212221220201. The next prime is 2212221220217. The reversal of 2212221220211 is 1120221222122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2212221220211 - 2¹⁸ = 2212220958067 is a prime.

It is not a weakly prime, because it can be changed into another prime (2212221220217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106110610105 + 1106110610106.

It is an arithmetic number, because the mean of its divisors is an integer number (1106110610106).

Almost surely, 2^{2212221220211} is an apocalyptic number.

2212221220211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212221220211 is an equidigital number, since it uses as much as digits as its factorization.

2212221220211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2212221220211 its reverse (1120221222122), we get a palindrome (3332442442333).

The spelling of 2212221220211 in words is "two trillion, two hundred twelve billion, two hundred twenty-one million, two hundred twenty thousand, two hundred eleven".