212003213 has 4 divisors (see below), whose sum is σ = 221220768. Its totient is φ = 202785660.

The previous prime is 212003189. The next prime is 212003219. The reversal of 212003213 is 312300212.

It is a happy number.

212003213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212003213 - 2¹⁴ = 211986829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212003219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4608743 + ... + 4608788.

It is an arithmetic number, because the mean of its divisors is an integer number (55305192).

Almost surely, 2^212003213 is an apocalyptic number.

212003213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

212003213 is a deficient number, since it is larger than the sum of its proper divisors (9217555).

212003213 is an equidigital number, since it uses as much as digits as its factorization.

212003213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9217554.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 212003213 is about 14560.3301130160. The cubic root of 212003213 is about 596.2762080638.

Adding to 212003213 its reverse (312300212), we get a palindrome (524303425).

The spelling of 212003213 in words is "two hundred twelve million, three thousand, two hundred thirteen".