2221001001211 has 2 divisors, whose sum is σ = 2221001001212. Its totient is φ = 2221001001210.

The previous prime is 2221001001199. The next prime is 2221001001227. The reversal of 2221001001211 is 1121001001222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221001001211 - 2¹⁵ = 2221000968443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2221001001191 and 2221001001200.

It is not a weakly prime, because it can be changed into another prime (2221001001911) 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, 1110500500605 + 1110500500606.

It is an arithmetic number, because the mean of its divisors is an integer number (1110500500606).

Almost surely, 2^{2221001001211} is an apocalyptic number.

2221001001211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221001001211 is an equidigital number, since it uses as much as digits as its factorization.

2221001001211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2221001001211 its reverse (1121001001222), we get a palindrome (3342002002433).

The spelling of 2221001001211 in words is "two trillion, two hundred twenty-one billion, one million, one thousand, two hundred eleven".