212101001101111 has 8 divisors (see below), whose sum is σ = 223364016920880. Its totient is φ = 200847965804928.

The previous prime is 212101001101063. The next prime is 212101001101117. The reversal of 212101001101111 is 111101100101212.

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 212101001101111 - 2¹³ = 212101001092919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212101001101091 and 212101001101100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212101001101117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2495087266 + ... + 2495172271.

It is an arithmetic number, because the mean of its divisors is an integer number (27920502115110).

Almost surely, 2^{212101001101111} is an apocalyptic number.

212101001101111 is a deficient number, since it is larger than the sum of its proper divisors (11263015819769).

212101001101111 is a wasteful number, since it uses less digits than its factorization.

212101001101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4990261793.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 212101001101111 its reverse (111101100101212), we get a palindrome (323202101202323).

The spelling of 212101001101111 in words is "two hundred twelve trillion, one hundred one billion, one million, one hundred one thousand, one hundred eleven".