2011112212103 has 4 divisors (see below), whose sum is σ = 2129412930480. Its totient is φ = 1892811493728.

The previous prime is 2011112212079. The next prime is 2011112212237. The reversal of 2011112212103 is 3012122111102.

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 2011112212103 - 2⁸ = 2011112211847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 118300718359 = 2011112212103 / (2 + 0 + 1 + 1 + 1 + 1 + 2 + 2 + 1 + 2 + 1 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011112242103) 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, 59150359163 + ... + 59150359196.

It is an arithmetic number, because the mean of its divisors is an integer number (532353232620).

Almost surely, 2^{2011112212103} is an apocalyptic number.

2011112212103 is a deficient number, since it is larger than the sum of its proper divisors (118300718377).

2011112212103 is a wasteful number, since it uses less digits than its factorization.

2011112212103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118300718376.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 2011112212103 its reverse (3012122111102), we get a palindrome (5023234323205).

The spelling of 2011112212103 in words is "two trillion, eleven billion, one hundred twelve million, two hundred twelve thousand, one hundred three".