2143212 has 12 divisors (see below), whose sum is σ = 5000856. Its totient is φ = 714400.

The previous prime is 2143201. The next prime is 2143217. The reversal of 2143212 is 2123412.

2143212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

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

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

It is a junction number, because it is equal to n+sod(n) for n = 2143191 and 2143200.

It is not an unprimeable number, because it can be changed into a prime (2143217) by changing a digit.

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, 89289 + ... + 89312.

It is an arithmetic number, because the mean of its divisors is an integer number (416738).

2^2143212 is an apocalyptic number.

It is an amenable number.

2143212 is an abundant number, since it is smaller than the sum of its proper divisors (2857644).

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

2143212 is a wasteful number, since it uses less digits than its factorization.

2143212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178608 (or 178606 counting only the distinct ones).

The product of its digits is 96, while the sum is 15.

The square root of 2143212 is about 1463.9713111943. The cubic root of 2143212 is about 128.9303151067.

Adding to 2143212 its reverse (2123412), we get a palindrome (4266624).

The spelling of 2143212 in words is "two million, one hundred forty-three thousand, two hundred twelve".