212150 has 12 divisors (see below), whose sum is σ = 394692. Its totient is φ = 84840.

The previous prime is 212141. The next prime is 212161. The reversal of 212150 is 51212.

It is a congruent number.

It is an unprimeable number.

212150 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2072 + ... + 2171.

It is an arithmetic number, because the mean of its divisors is an integer number (32891).

2²¹²¹⁵⁰ is an apocalyptic number.

212150 is a deficient number, since it is larger than the sum of its proper divisors (182542).

212150 is a wasteful number, since it uses less digits than its factorization.

212150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4255 (or 4250 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 212150 is about 460.5974381171. The cubic root of 212150 is about 59.6413793091.

Adding to 212150 its reverse (51212), we get a palindrome (263362).

It can be divided in two parts, 21 and 2150, that multiplied together give a triangular number (45150 = T₃₀₀).

The spelling of 212150 in words is "two hundred twelve thousand, one hundred fifty".