212107 has 8 divisors (see below), whose sum is σ = 245216. Its totient is φ = 179712.

The previous prime is 212099. The next prime is 212117. The reversal of 212107 is 701212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212107 - 2³ = 212099 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212117) 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, 1003 + ... + 1195.

It is an arithmetic number, because the mean of its divisors is an integer number (30652).

2²¹²¹⁰⁷ is an apocalyptic number.

212107 is a deficient number, since it is larger than the sum of its proper divisors (33109).

212107 is a wasteful number, since it uses less digits than its factorization.

212107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 212107 is about 460.5507572461. The cubic root of 212107 is about 59.6373495304.

Adding to 212107 its reverse (701212), we get a palindrome (913319).

The spelling of 212107 in words is "two hundred twelve thousand, one hundred seven", and thus it is an iban number.