22614221 has 24 divisors (see below), whose sum is σ = 28030464. Its totient is φ = 17851680.

The previous prime is 22614217. The next prime is 22614223. The reversal of 22614221 is 12241622.

It is a happy number.

It is not a de Polignac number, because 22614221 - 2² = 22614217 is a prime.

It is a super-2 number, since 2×22614221² = 1022805982873682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22614193 and 22614202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22614223) 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 23 ways as a sum of consecutive naturals, for example, 114695 + ... + 114891.

It is an arithmetic number, because the mean of its divisors is an integer number (1167936).

Almost surely, 2^22614221 is an apocalyptic number.

It is an amenable number.

22614221 is a deficient number, since it is larger than the sum of its proper divisors (5416243).

22614221 is a wasteful number, since it uses less digits than its factorization.

22614221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 258 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 22614221 is about 4755.4411993000. The cubic root of 22614221 is about 282.7877184578.

Adding to 22614221 its reverse (12241622), we get a palindrome (34855843).

The spelling of 22614221 in words is "twenty-two million, six hundred fourteen thousand, two hundred twenty-one".