111310212 has 48 divisors (see below), whose sum is σ = 288737792. Its totient is φ = 33143040.

The previous prime is 111310211. The next prime is 111310219. The reversal of 111310212 is 212013111.

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

It is not an unprimeable number, because it can be changed into a prime (111310211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6673 + ... + 16344.

Almost surely, 2^111310212 is an apocalyptic number.

111310212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111310212 is an abundant number, since it is smaller than the sum of its proper divisors (177427580).

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

111310212 is a wasteful number, since it uses less digits than its factorization.

111310212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23068 (or 23066 counting only the distinct ones).

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

The square root of 111310212 is about 10550.3654912993. The cubic root of 111310212 is about 481.0368385938.

Adding to 111310212 its reverse (212013111), we get a palindrome (323323323).

It can be divided in two parts, 1113 and 10212, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 111310212 in words is "one hundred eleven million, three hundred ten thousand, two hundred twelve".