111212201112 has 32 divisors (see below), whose sum is σ = 278041988400. Its totient is φ = 37069202304.

The previous prime is 111212201083. The next prime is 111212201119. The reversal of 111212201112 is 211102212111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111212201091 and 111212201100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111212201119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600798 + ... + 763794.

Almost surely, 2^111212201112 is an apocalyptic number.

111212201112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111212201112 is an abundant number, since it is smaller than the sum of its proper divisors (166829787288).

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

111212201112 is a wasteful number, since it uses less digits than its factorization.

111212201112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191435 (or 191431 counting only the distinct ones).

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

Adding to 111212201112 its reverse (211102212111), we get a palindrome (322314413223).

The spelling of 111212201112 in words is "one hundred eleven billion, two hundred twelve million, two hundred one thousand, one hundred twelve".