212111201103 has 4 divisors (see below), whose sum is σ = 282814934808. Its totient is φ = 141407467400.

The previous prime is 212111201069. The next prime is 212111201119. The reversal of 212111201103 is 301102111212.

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 212111201103 - 2²⁴ = 212094423887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212111201123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35351866848 + ... + 35351866853.

It is an arithmetic number, because the mean of its divisors is an integer number (70703733702).

Almost surely, 2^212111201103 is an apocalyptic number.

212111201103 is a deficient number, since it is larger than the sum of its proper divisors (70703733705).

212111201103 is an equidigital number, since it uses as much as digits as its factorization.

212111201103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70703733704.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 212111201103 its reverse (301102111212), we get a palindrome (513213312315).

The spelling of 212111201103 in words is "two hundred twelve billion, one hundred eleven million, two hundred one thousand, one hundred three".