111113212 has 12 divisors (see below), whose sum is σ = 222226480. Its totient is φ = 47619936.

The previous prime is 111113201. The next prime is 111113213. The reversal of 111113212 is 212311111.

It is a happy number.

111113212 is an admirable number.

It is a super-2 number, since 2×111113212² = 24692291761913888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111113192 and 111113201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111113213) by changing a digit.

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, 1984137 + ... + 1984192.

Almost surely, 2^111113212 is an apocalyptic number.

It is an amenable number.

111113212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

111113212 is a wasteful number, since it uses less digits than its factorization.

111113212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3968340 (or 3968338 counting only the distinct ones).

The product of its digits is 12, while the sum is 13.

The square root of 111113212 is about 10541.0251873335. The cubic root of 111113212 is about 480.7528867561.

Adding to 111113212 its reverse (212311111), we get a palindrome (323424323).

The spelling of 111113212 in words is "one hundred eleven million, one hundred thirteen thousand, two hundred twelve".