111004212 has 24 divisors (see below), whose sum is σ = 282556512. Its totient is φ = 33637600.

The previous prime is 111004189. The next prime is 111004217. The reversal of 111004212 is 212400111.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111004217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420339 + ... + 420602.

It is an arithmetic number, because the mean of its divisors is an integer number (11773188).

Almost surely, 2^111004212 is an apocalyptic number.

111004212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111004212 is an abundant number, since it is smaller than the sum of its proper divisors (171552300).

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

111004212 is a wasteful number, since it uses less digits than its factorization.

111004212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840959 (or 840957 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 111004212 is about 10535.8536436304. The cubic root of 111004212 is about 480.5956321021.

Adding to 111004212 its reverse (212400111), we get a palindrome (323404323).

The spelling of 111004212 in words is "one hundred eleven million, four thousand, two hundred twelve".