111010212 has 36 divisors (see below), whose sum is σ = 288196636. Its totient is φ = 36002880.

The previous prime is 111010199. The next prime is 111010261. The reversal of 111010212 is 212010111.

It is a happy number.

111010212 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 99680256 + 11329956 = 9984^2 + 3366^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

111010212 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 111010194 and 111010203.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40339 + ... + 43002.

Almost surely, 2^111010212 is an apocalyptic number.

111010212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111010212 is an abundant number, since it is smaller than the sum of its proper divisors (177186424).

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

111010212 is a wasteful number, since it uses less digits than its factorization.

111010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83388 (or 83383 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 111010212 is about 10536.1383817792. The cubic root of 111010212 is about 480.6042909982.

Adding to 111010212 its reverse (212010111), we get a palindrome (323020323).

The spelling of 111010212 in words is "one hundred eleven million, ten thousand, two hundred twelve".