226421321 has 4 divisors (see below), whose sum is σ = 258767232. Its totient is φ = 194075412.

The previous prime is 226421281. The next prime is 226421323. The reversal of 226421321 is 123124622.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 226421321 - 2⁶ = 226421257 is a prime.

It is a super-2 number, since 2×226421321² = 102533229206770082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226421323) 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 3 ways as a sum of consecutive naturals, for example, 16172945 + ... + 16172958.

It is an arithmetic number, because the mean of its divisors is an integer number (64691808).

Almost surely, 2^226421321 is an apocalyptic number.

It is an amenable number.

226421321 is a deficient number, since it is larger than the sum of its proper divisors (32345911).

226421321 is an equidigital number, since it uses as much as digits as its factorization.

226421321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32345910.

The product of its digits is 1152, while the sum is 23.

The square root of 226421321 is about 15047.3027815619. The cubic root of 226421321 is about 609.4982176465.

Adding to 226421321 its reverse (123124622), we get a palindrome (349545943).

The spelling of 226421321 in words is "two hundred twenty-six million, four hundred twenty-one thousand, three hundred twenty-one".