225334221 has 8 divisors (see below), whose sum is σ = 343366464. Its totient is φ = 128762400.

The previous prime is 225334211. The next prime is 225334231. The reversal of 225334221 is 122433522.

It is an interprime number because it is at equal distance from previous prime (225334211) and next prime (225334231).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225334221 - 2⁹ = 225333709 is a prime.

It is a super-2 number, since 2×225334221² = 101551022307353682, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 225334191 and 225334200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225334211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5365080 + ... + 5365121.

It is an arithmetic number, because the mean of its divisors is an integer number (42920808).

Almost surely, 2^225334221 is an apocalyptic number.

225334221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

225334221 is a deficient number, since it is larger than the sum of its proper divisors (118032243).

225334221 is a wasteful number, since it uses less digits than its factorization.

225334221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10730211.

The product of its digits is 2880, while the sum is 24.

The square root of 225334221 is about 15011.1365658967. The cubic root of 225334221 is about 608.5212060667.

Adding to 225334221 its reverse (122433522), we get a palindrome (347767743).

The spelling of 225334221 in words is "two hundred twenty-five million, three hundred thirty-four thousand, two hundred twenty-one".