212110111101 has 16 divisors (see below), whose sum is σ = 326353424384. Its totient is φ = 120029021424.

The previous prime is 212110111061. The next prime is 212110111139. The reversal of 212110111101 is 101111011212.

It is not a de Polignac number, because 212110111101 - 2¹⁷ = 212109980029 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 (212110111201) 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 15 ways as a sum of consecutive naturals, for example, 49029301 + ... + 49033626.

It is an arithmetic number, because the mean of its divisors is an integer number (20397089024).

Almost surely, 2^212110111101 is an apocalyptic number.

212110111101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

212110111101 is a deficient number, since it is larger than the sum of its proper divisors (114243313283).

212110111101 is a wasteful number, since it uses less digits than its factorization.

212110111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98063040.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 212110111101 its reverse (101111011212), we get a palindrome (313221122313).

The spelling of 212110111101 in words is "two hundred twelve billion, one hundred ten million, one hundred eleven thousand, one hundred one".