10001211222011 has 2 divisors, whose sum is σ = 10001211222012. Its totient is φ = 10001211222010.

The previous prime is 10001211221959. The next prime is 10001211222031. The reversal of 10001211222011 is 11022211210001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10001211222011 is a prime.

It is not a weakly prime, because it can be changed into another prime (10001211222031) 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, 5000605611005 + 5000605611006.

It is an arithmetic number, because the mean of its divisors is an integer number (5000605611006).

Almost surely, 2^{10001211222011} is an apocalyptic number.

10001211222011 is a deficient number, since it is larger than the sum of its proper divisors (1).

10001211222011 is an equidigital number, since it uses as much as digits as its factorization.

10001211222011 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 14.

Adding to 10001211222011 its reverse (11022211210001), we get a palindrome (21023422432012).

The spelling of 10001211222011 in words is "ten trillion, one billion, two hundred eleven million, two hundred twenty-two thousand, eleven".