212124 has 24 divisors (see below), whose sum is σ = 540288. Its totient is φ = 64240.

The previous prime is 212123. The next prime is 212131. The reversal of 212124 is 421212.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212123) 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, 672 + ... + 935.

It is an arithmetic number, because the mean of its divisors is an integer number (22512).

2²¹²¹²⁴ is an apocalyptic number.

It is an amenable number.

212124 is an abundant number, since it is smaller than the sum of its proper divisors (328164).

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

212124 is a wasteful number, since it uses less digits than its factorization.

212124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625 (or 1623 counting only the distinct ones).

The product of its digits is 32, while the sum is 12.

The square root of 212124 is about 460.5692130397. The cubic root of 212124 is about 59.6389427638.

Adding to 212124 its reverse (421212), we get a palindrome (633336).

It can be divided in two parts, 21212 and 4, that multiplied together give a palindrome (84848).

The spelling of 212124 in words is "two hundred twelve thousand, one hundred twenty-four", and thus it is an iban number.