211111210200111 has 32 divisors (see below), whose sum is σ = 305982191739840. Its totient is φ = 128694479616000.

The previous prime is 211111210200043. The next prime is 211111210200113. The reversal of 211111210200111 is 111002012111112.

It is a de Polignac number, because none of the positive numbers 2^k-211111210200111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211111210200113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13944661 + ... + 24832961.

It is an arithmetic number, because the mean of its divisors is an integer number (9561943491870).

Almost surely, 2^{211111210200111} is an apocalyptic number.

211111210200111 is a deficient number, since it is larger than the sum of its proper divisors (94870981539729).

211111210200111 is a wasteful number, since it uses less digits than its factorization.

211111210200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10892987.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 211111210200111 its reverse (111002012111112), we get a palindrome (322113222311223).

The spelling of 211111210200111 in words is "two hundred eleven trillion, one hundred eleven billion, two hundred ten million, two hundred thousand, one hundred eleven".