111222101112 has 32 divisors (see below), whose sum is σ = 294411445200. Its totient is φ = 34893208064.

The previous prime is 111222101083. The next prime is 111222101131. The reversal of 111222101112 is 211101222111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111222101091 and 111222101100.

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 7 ways as a sum of consecutive naturals, for example, 136301187 + ... + 136302002.

Almost surely, 2^111222101112 is an apocalyptic number.

111222101112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111222101112 is an abundant number, since it is smaller than the sum of its proper divisors (183189344088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111222101112 is a wasteful number, since it uses less digits than its factorization.

111222101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272603215 (or 272603211 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111222101112 its reverse (211101222111), we get a palindrome (322323323223).

The spelling of 111222101112 in words is "one hundred eleven billion, two hundred twenty-two million, one hundred one thousand, one hundred twelve".