210210212011111 has 8 divisors (see below), whose sum is σ = 226381158422384. Its totient is φ = 194039398471680.

The previous prime is 210210212011073. The next prime is 210210212011117. The reversal of 210210212011111 is 111110212012012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 210210212011111 - 2⁹ = 210210212010599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210210212011117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29920026 + ... + 36271591.

It is an arithmetic number, because the mean of its divisors is an integer number (28297644802798).

Almost surely, 2^{210210212011111} is an apocalyptic number.

210210212011111 is a deficient number, since it is larger than the sum of its proper divisors (16170946411273).

210210212011111 is a wasteful number, since it uses less digits than its factorization.

210210212011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66435921.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 210210212011111 its reverse (111110212012012), we get a palindrome (321320424023123).

Subtracting from 210210212011111 its reverse (111110212012012), we obtain a palindrome (99099999999099).

The spelling of 210210212011111 in words is "two hundred ten trillion, two hundred ten billion, two hundred twelve million, eleven thousand, one hundred eleven".