211202020111 has 2 divisors, whose sum is σ = 211202020112. Its totient is φ = 211202020110.

The previous prime is 211202020109. The next prime is 211202020151. The reversal of 211202020111 is 111020202112.

211202020111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211202020111 - 2¹ = 211202020109 is a prime.

Together with 211202020109, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 211202020091 and 211202020100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211202020151) 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, 105601010055 + 105601010056.

It is an arithmetic number, because the mean of its divisors is an integer number (105601010056).

Almost surely, 2^211202020111 is an apocalyptic number.

211202020111 is a deficient number, since it is larger than the sum of its proper divisors (1).

211202020111 is an equidigital number, since it uses as much as digits as its factorization.

211202020111 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 13.

Adding to 211202020111 its reverse (111020202112), we get a palindrome (322222222223).

The spelling of 211202020111 in words is "two hundred eleven billion, two hundred two million, twenty thousand, one hundred eleven".