111013212 has 24 divisors (see below), whose sum is σ = 259660800. Its totient is φ = 36914416.

The previous prime is 111013187. The next prime is 111013223. The reversal of 111013212 is 212310111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6012 + ... + 16067.

It is an arithmetic number, because the mean of its divisors is an integer number (10819200).

Almost surely, 2^111013212 is an apocalyptic number.

111013212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111013212 is an abundant number, since it is smaller than the sum of its proper divisors (148647588).

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

111013212 is a wasteful number, since it uses less digits than its factorization.

111013212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22505 (or 22503 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 111013212 is about 10536.2807479679. The cubic root of 111013212 is about 480.6086203293.

Adding to 111013212 its reverse (212310111), we get a palindrome (323323323).

The spelling of 111013212 in words is "one hundred eleven million, thirteen thousand, two hundred twelve".