221222220000211 has 2 divisors, whose sum is σ = 221222220000212. Its totient is φ = 221222220000210.

The previous prime is 221222220000167. The next prime is 221222220000217. The reversal of 221222220000211 is 112000022222122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221222220000211 - 2⁹ = 221222219999699 is a prime.

It is not a weakly prime, because it can be changed into another prime (221222220000217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110611110000105 + 110611110000106.

It is an arithmetic number, because the mean of its divisors is an integer number (110611110000106).

Almost surely, 2^{221222220000211} is an apocalyptic number.

221222220000211 is a deficient number, since it is larger than the sum of its proper divisors (1).

221222220000211 is an equidigital number, since it uses as much as digits as its factorization.

221222220000211 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 19.

Adding to 221222220000211 its reverse (112000022222122), we get a palindrome (333222242222333).

The spelling of 221222220000211 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, two hundred twenty million, two hundred eleven", and thus it is an aban number.