111012213 has 16 divisors (see below), whose sum is σ = 160354880. Its totient is φ = 68311152.

The previous prime is 111012199. The next prime is 111012221. The reversal of 111012213 is 312210111.

It is not a de Polignac number, because 111012213 - 2⁶ = 111012149 is a prime.

It is a super-2 number, since 2×111012213² = 24647422870314738, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111012313) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1831 + ... + 15012.

It is an arithmetic number, because the mean of its divisors is an integer number (10022180).

Almost surely, 2^111012213 is an apocalyptic number.

111012213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

111012213 is a deficient number, since it is larger than the sum of its proper divisors (49342667).

111012213 is an equidigital number, since it uses as much as digits as its factorization.

111012213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16885 (or 16859 counting only the distinct ones).

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

The square root of 111012213 is about 10536.2333402407. The cubic root of 111012213 is about 480.6071786707.

Adding to 111012213 its reverse (312210111), we get a palindrome (423222324).

The spelling of 111012213 in words is "one hundred eleven million, twelve thousand, two hundred thirteen".