118212 has 12 divisors (see below), whose sum is σ = 275856. Its totient is φ = 39400.

The previous prime is 118211. The next prime is 118213. The reversal of 118212 is 212811.

It is an interprime number because it is at equal distance from previous prime (118211) and next prime (118213).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 118191 and 118200.

It is not an unprimeable number, because it can be changed into a prime (118211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4914 + ... + 4937.

It is an arithmetic number, because the mean of its divisors is an integer number (22988).

2¹¹⁸²¹² is an apocalyptic number.

118212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

118212 is an abundant number, since it is smaller than the sum of its proper divisors (157644).

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

118212 is a wasteful number, since it uses less digits than its factorization.

118212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9858 (or 9856 counting only the distinct ones).

The product of its digits is 32, while the sum is 15.

The square root of 118212 is about 343.8197202023. The cubic root of 118212 is about 49.0780375282.

The spelling of 118212 in words is "one hundred eighteen thousand, two hundred twelve".