111000100120211 has 4 divisors (see below), whose sum is σ = 112037484233592. Its totient is φ = 109962716006832.

The previous prime is 111000100120139. The next prime is 111000100120237. The reversal of 111000100120211 is 112021001000111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111000100120211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111000100120192 and 111000100120201.

It is not an unprimeable number, because it can be changed into a prime (111000100120241) 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 3 ways as a sum of consecutive naturals, for example, 518692056530 + ... + 518692056743.

It is an arithmetic number, because the mean of its divisors is an integer number (28009371058398).

Almost surely, 2^{111000100120211} is an apocalyptic number.

111000100120211 is a deficient number, since it is larger than the sum of its proper divisors (1037384113381).

111000100120211 is a wasteful number, since it uses less digits than its factorization.

111000100120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037384113380.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111000100120211 its reverse (112021001000111), we get a palindrome (223021101120322).

The spelling of 111000100120211 in words is "one hundred eleven trillion, one hundred million, one hundred twenty thousand, two hundred eleven".