22243213 has 8 divisors (see below), whose sum is σ = 23016960. Its totient is φ = 21473040.

The previous prime is 22243201. The next prime is 22243217. The reversal of 22243213 is 31234222.

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 22243213 - 2⁵ = 22243181 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 (22243217) 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, 19503 + ... + 20611.

It is an arithmetic number, because the mean of its divisors is an integer number (2877120).

Almost surely, 2^22243213 is an apocalyptic number.

It is an amenable number.

22243213 is a deficient number, since it is larger than the sum of its proper divisors (773747).

22243213 is a wasteful number, since it uses less digits than its factorization.

22243213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787.

The product of its digits is 576, while the sum is 19.

The square root of 22243213 is about 4716.2710905969. The cubic root of 22243213 is about 281.2327154481.

Adding to 22243213 its reverse (31234222), we get a palindrome (53477435).

The spelling of 22243213 in words is "twenty-two million, two hundred forty-three thousand, two hundred thirteen".