111102120212 has 12 divisors (see below), whose sum is σ = 205865693460. Its totient is φ = 52283350656.

The previous prime is 111102120187. The next prime is 111102120343. The reversal of 111102120212 is 212021201111.

111102120212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 30942920836 + 80159199376 = 175906^2 + 283124^2 .

It is a super-2 number, since 2×111102120212² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816927287 + ... + 816927422.

It is an arithmetic number, because the mean of its divisors is an integer number (17155474455).

Almost surely, 2^111102120212 is an apocalyptic number.

It is an amenable number.

111102120212 is a deficient number, since it is larger than the sum of its proper divisors (94763573248).

111102120212 is a wasteful number, since it uses less digits than its factorization.

111102120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633854730 (or 1633854728 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111102120212 its reverse (212021201111), we get a palindrome (323123321323).

The spelling of 111102120212 in words is "one hundred eleven billion, one hundred two million, one hundred twenty thousand, two hundred twelve".