2111021110111 has 2 divisors, whose sum is σ = 2111021110112. Its totient is φ = 2111021110110.

The previous prime is 2111021110087. The next prime is 2111021110129. The reversal of 2111021110111 is 1110111201112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111021110111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2111021110091 and 2111021110100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111021110141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055510555055 + 1055510555056.

It is an arithmetic number, because the mean of its divisors is an integer number (1055510555056).

Almost surely, 2^{2111021110111} is an apocalyptic number.

2111021110111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111021110111 is an equidigital number, since it uses as much as digits as its factorization.

2111021110111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 2111021110111 its reverse (1110111201112), we get a palindrome (3221132311223).

The spelling of 2111021110111 in words is "two trillion, one hundred eleven billion, twenty-one million, one hundred ten thousand, one hundred eleven".