22225471 has 2 divisors, whose sum is σ = 22225472. Its totient is φ = 22225470.

The previous prime is 22225451. The next prime is 22225499. The reversal of 22225471 is 17452222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22225471 - 2⁵ = 22225439 is a prime.

It is a super-3 number, since 3×22225471³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is equal to p_1402486 and since 22225471 and 1402486 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22225451) 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 as a sum of consecutive naturals, namely, 11112735 + 11112736.

It is an arithmetic number, because the mean of its divisors is an integer number (11112736).

Almost surely, 2^22225471 is an apocalyptic number.

22225471 is a deficient number, since it is larger than the sum of its proper divisors (1).

22225471 is an equidigital number, since it uses as much as digits as its factorization.

22225471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2240, while the sum is 25.

The square root of 22225471 is about 4714.3897802367. The cubic root of 22225471 is about 281.1579217262.

Adding to 22225471 its reverse (17452222), we get a palindrome (39677693).

The spelling of 22225471 in words is "twenty-two million, two hundred twenty-five thousand, four hundred seventy-one".