211210012111101 has 4 divisors (see below), whose sum is σ = 281613349481472. Its totient is φ = 140806674740732.

The previous prime is 211210012111039. The next prime is 211210012111139. The reversal of 211210012111101 is 101111210012112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211210012111101 - 2⁶ = 211210012111037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211210012111141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35201668685181 + ... + 35201668685186.

It is an arithmetic number, because the mean of its divisors is an integer number (70403337370368).

Almost surely, 2^{211210012111101} is an apocalyptic number.

It is an amenable number.

211210012111101 is a deficient number, since it is larger than the sum of its proper divisors (70403337370371).

211210012111101 is an equidigital number, since it uses as much as digits as its factorization.

211210012111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70403337370370.

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

Adding to 211210012111101 its reverse (101111210012112), we get a palindrome (312321222123213).

The spelling of 211210012111101 in words is "two hundred eleven trillion, two hundred ten billion, twelve million, one hundred eleven thousand, one hundred one".