212280 has 64 divisors (see below), whose sum is σ = 669600. Its totient is φ = 53760.

The previous prime is 212243. The next prime is 212281. The reversal of 212280 is 82212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3450 + ... + 3510.

2²¹²²⁸⁰ is an apocalyptic number.

212280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334800).

212280 is an abundant number, since it is smaller than the sum of its proper divisors (457320).

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

212280 is a wasteful number, since it uses less digits than its factorization.

212280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 212280 is about 460.7385375677. The cubic root of 212280 is about 59.6535590501.

Adding to 212280 its reverse (82212), we get a palindrome (294492).

The spelling of 212280 in words is "two hundred twelve thousand, two hundred eighty".