1001222112211 has 2 divisors, whose sum is σ = 1001222112212. Its totient is φ = 1001222112210.

The previous prime is 1001222112161. The next prime is 1001222112223. The reversal of 1001222112211 is 1122112221001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1001222112211 - 2⁹ = 1001222111699 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001222110211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500611056105 + 500611056106.

It is an arithmetic number, because the mean of its divisors is an integer number (500611056106).

Almost surely, 2^{1001222112211} is an apocalyptic number.

1001222112211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001222112211 is an equidigital number, since it uses as much as digits as its factorization.

1001222112211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1001222112211 its reverse (1122112221001), we get a palindrome (2123334333212).

The spelling of 1001222112211 in words is "one trillion, one billion, two hundred twenty-two million, one hundred twelve thousand, two hundred eleven".