111111101206 has 12 divisors (see below), whose sum is σ = 193877533908. Its totient is φ = 47619043332.

The previous prime is 111111101197. The next prime is 111111101221. The reversal of 111111101206 is 602101111111.

It is a super-2 number, since 2×111111101206² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111111101206.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 566893276 + ... + 566893471.

It is an arithmetic number, because the mean of its divisors is an integer number (16156461159).

Almost surely, 2^111111101206 is an apocalyptic number.

111111101206 is a deficient number, since it is larger than the sum of its proper divisors (82766432702).

111111101206 is a wasteful number, since it uses less digits than its factorization.

111111101206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133786763 (or 1133786756 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 16.

Adding to 111111101206 its reverse (602101111111), we get a palindrome (713212212317).

The spelling of 111111101206 in words is "one hundred eleven billion, one hundred eleven million, one hundred one thousand, two hundred six".