10001211122011 has 2 divisors, whose sum is σ = 10001211122012. Its totient is φ = 10001211122010.

The previous prime is 10001211121999. The next prime is 10001211122093. The reversal of 10001211122011 is 11022111210001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10001211122011 - 2⁷ = 10001211121883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10001211121982 and 10001211122000.

It is not a weakly prime, because it can be changed into another prime (10001211162011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000605561005 + 5000605561006.

It is an arithmetic number, because the mean of its divisors is an integer number (5000605561006).

Almost surely, 2^{10001211122011} is an apocalyptic number.

10001211122011 is a deficient number, since it is larger than the sum of its proper divisors (1).

10001211122011 is an equidigital number, since it uses as much as digits as its factorization.

10001211122011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10001211122011 its reverse (11022111210001), we get a palindrome (21023322332012).

The spelling of 10001211122011 in words is "ten trillion, one billion, two hundred eleven million, one hundred twenty-two thousand, eleven".