2213213 has 8 divisors (see below), whose sum is σ = 2368440. Its totient is φ = 2060800.

The previous prime is 2213209. The next prime is 2213243. The reversal of 2213213 is 3123122.

It is a happy number.

2213213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1570009 + 643204 = 1253^2 + 802^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2213213 - 2² = 2213209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213203) 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 7 ways as a sum of consecutive naturals, for example, 1073 + ... + 2361.

It is an arithmetic number, because the mean of its divisors is an integer number (296055).

2^2213213 is an apocalyptic number.

It is an amenable number.

2213213 is a deficient number, since it is larger than the sum of its proper divisors (155227).

2213213 is a wasteful number, since it uses less digits than its factorization.

2213213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407.

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

The square root of 2213213 is about 1487.6871310864. The cubic root of 2213213 is about 130.3189996221.

Adding to 2213213 its reverse (3123122), we get a palindrome (5336335).

Subtracting 2213213 from its reverse (3123122), we obtain a palindrome (909909).

It can be divided in two parts, 2 and 213213, that multiplied together give a triangular number (426426 = T₉₂₃).

The spelling of 2213213 in words is "two million, two hundred thirteen thousand, two hundred thirteen".