212111201200011 has 4 divisors (see below), whose sum is σ = 282814934933352. Its totient is φ = 141407467466672.

The previous prime is 212111201199959. The next prime is 212111201200021. The reversal of 212111201200011 is 110002102111212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212111201200011 - 2¹¹ = 212111201197963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212111201200021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35351866866666 + ... + 35351866866671.

It is an arithmetic number, because the mean of its divisors is an integer number (70703733733338).

Almost surely, 2^{212111201200011} is an apocalyptic number.

212111201200011 is a deficient number, since it is larger than the sum of its proper divisors (70703733733341).

212111201200011 is an equidigital number, since it uses as much as digits as its factorization.

212111201200011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70703733733340.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 212111201200011 its reverse (110002102111212), we get a palindrome (322113303311223).

The spelling of 212111201200011 in words is "two hundred twelve trillion, one hundred eleven billion, two hundred one million, two hundred thousand, eleven".