22144213 has 8 divisors (see below), whose sum is σ = 27254528. Its totient is φ = 17520624.

The previous prime is 22144189. The next prime is 22144219. The reversal of 22144213 is 31244122.

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 22144213 - 2⁵ = 22144181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22144219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121581 + ... + 121762.

It is an arithmetic number, because the mean of its divisors is an integer number (3406816).

Almost surely, 2^22144213 is an apocalyptic number.

It is an amenable number.

22144213 is a deficient number, since it is larger than the sum of its proper divisors (5110315).

22144213 is a wasteful number, since it uses less digits than its factorization.

22144213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243363.

The product of its digits is 384, while the sum is 19.

The square root of 22144213 is about 4705.7638062274. The cubic root of 22144213 is about 280.8148584343.

Adding to 22144213 its reverse (31244122), we get a palindrome (53388335).

Subtracting 22144213 from its reverse (31244122), we obtain a palindrome (9099909).

The spelling of 22144213 in words is "twenty-two million, one hundred forty-four thousand, two hundred thirteen".