2111102012011 has 2 divisors, whose sum is σ = 2111102012012. Its totient is φ = 2111102012010.

The previous prime is 2111102011979. The next prime is 2111102012051. The reversal of 2111102012011 is 1102102011112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2111102012011 - 2⁵ = 2111102011979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2111102011982 and 2111102012000.

It is not a weakly prime, because it can be changed into another prime (2111102012051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055551006005 + 1055551006006.

It is an arithmetic number, because the mean of its divisors is an integer number (1055551006006).

Almost surely, 2^{2111102012011} is an apocalyptic number.

2111102012011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111102012011 is an equidigital number, since it uses as much as digits as its factorization.

2111102012011 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 2111102012011 its reverse (1102102011112), we get a palindrome (3213204023123).

The spelling of 2111102012011 in words is "two trillion, one hundred eleven billion, one hundred two million, twelve thousand, eleven".