2221122201211 has 2 divisors, whose sum is σ = 2221122201212. Its totient is φ = 2221122201210.

The previous prime is 2221122201187. The next prime is 2221122201281. The reversal of 2221122201211 is 1121022211222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221122201211 - 2¹⁵ = 2221122168443 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221122201281) 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, 1110561100605 + 1110561100606.

It is an arithmetic number, because the mean of its divisors is an integer number (1110561100606).

Almost surely, 2^{2221122201211} is an apocalyptic number.

2221122201211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221122201211 is an equidigital number, since it uses as much as digits as its factorization.

2221122201211 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 2221122201211 its reverse (1121022211222), we get a palindrome (3342144412433).

The spelling of 2221122201211 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-two million, two hundred one thousand, two hundred eleven".