2213321 has 4 divisors (see below), whose sum is σ = 2414544. Its totient is φ = 2012100.

The previous prime is 2213317. The next prime is 2213327. The reversal of 2213321 is 1233122.

It is a happy number.

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 2213321 - 2² = 2213317 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2213296 and 2213305.

It is not an unprimeable number, because it can be changed into a prime (2213327) 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, 100595 + ... + 100616.

It is an arithmetic number, because the mean of its divisors is an integer number (603636).

2^2213321 is an apocalyptic number.

It is an amenable number.

2213321 is a deficient number, since it is larger than the sum of its proper divisors (201223).

2213321 is a wasteful number, since it uses less digits than its factorization.

2213321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201222.

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

The square root of 2213321 is about 1487.7234285982. The cubic root of 2213321 is about 130.3211193493.

Adding to 2213321 its reverse (1233122), we get a palindrome (3446443).

The spelling of 2213321 in words is "two million, two hundred thirteen thousand, three hundred twenty-one".