111112012212 has 48 divisors (see below), whose sum is σ = 265333297152. Its totient is φ = 36170195040.

The previous prime is 111112012199. The next prime is 111112012261. The reversal of 111112012212 is 212210211111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111112012191 and 111112012200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4190637 + ... + 4217067.

It is an arithmetic number, because the mean of its divisors is an integer number (5527777024).

Almost surely, 2^111112012212 is an apocalyptic number.

111112012212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111112012212 is an abundant number, since it is smaller than the sum of its proper divisors (154221284940).

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

111112012212 is a wasteful number, since it uses less digits than its factorization.

111112012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34628 (or 34626 counting only the distinct ones).

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

Adding to 111112012212 its reverse (212210211111), we get a palindrome (323322223323).

The spelling of 111112012212 in words is "one hundred eleven billion, one hundred twelve million, twelve thousand, two hundred twelve".