212098 has 8 divisors (see below), whose sum is σ = 320508. Its totient is φ = 105264.

The previous prime is 212081. The next prime is 212099. The reversal of 212098 is 890212.

It can be written as a sum of positive squares in 2 ways, for example, as 208849 + 3249 = 457^2 + 57^2 .

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

It is not an unprimeable number, because it can be changed into a prime (212099) by changing a digit.

212098 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40 + ... + 652.

2²¹²⁰⁹⁸ is an apocalyptic number.

212098 is a deficient number, since it is larger than the sum of its proper divisors (108410).

212098 is a wasteful number, since it uses less digits than its factorization.

212098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 212098 is about 460.5409862325. The cubic root of 212098 is about 59.6365060195.

It can be divided in two parts, 2 and 12098, that added together give a square (12100 = 110²).

The spelling of 212098 in words is "two hundred twelve thousand, ninety-eight".