212270 has 8 divisors (see below), whose sum is σ = 382104. Its totient is φ = 84904.

The previous prime is 212243. The next prime is 212281. The reversal of 212270 is 72212.

212270 = 265² + 266² + 267².

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

It is a congruent number.

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 10604 + ... + 10623.

It is an arithmetic number, because the mean of its divisors is an integer number (47763).

2²¹²²⁷⁰ is an apocalyptic number.

212270 is a deficient number, since it is larger than the sum of its proper divisors (169834).

212270 is a wasteful number, since it uses less digits than its factorization.

212270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21234.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 212270 is about 460.7276852979. The cubic root of 212270 is about 59.6526223235.

Adding to 212270 its reverse (72212), we get a palindrome (284482).

The spelling of 212270 in words is "two hundred twelve thousand, two hundred seventy", and thus it is an iban number.