2102010200111 has 2 divisors, whose sum is σ = 2102010200112. Its totient is φ = 2102010200110.

The previous prime is 2102010200099. The next prime is 2102010200177. The reversal of 2102010200111 is 1110020102012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2102010200111 - 2²⁶ = 2101943091247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2102010200092 and 2102010200101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102010200011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051005100055 + 1051005100056.

It is an arithmetic number, because the mean of its divisors is an integer number (1051005100056).

Almost surely, 2^{2102010200111} is an apocalyptic number.

2102010200111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102010200111 is an equidigital number, since it uses as much as digits as its factorization.

2102010200111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2102010200111 its reverse (1110020102012), we get a palindrome (3212030302123).

It can be divided in two parts, 21020102001 and 11, that added together give a palindrome (21020102012).

The spelling of 2102010200111 in words is "two trillion, one hundred two billion, ten million, two hundred thousand, one hundred eleven".