226405124321 has 4 divisors (see below), whose sum is σ = 226613409792. Its totient is φ = 226196838852.

The previous prime is 226405124237. The next prime is 226405124327. The reversal of 226405124321 is 123421504622.

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 a de Polignac number, because none of the positive numbers 2^k-226405124321 is a prime.

It is a super-2 number, since 2×226405124321² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226405124327) 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, 104141105 + ... + 104143278.

It is an arithmetic number, because the mean of its divisors is an integer number (56653352448).

Almost surely, 2^226405124321 is an apocalyptic number.

It is an amenable number.

226405124321 is a deficient number, since it is larger than the sum of its proper divisors (208285471).

226405124321 is a wasteful number, since it uses less digits than its factorization.

226405124321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208285470.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 226405124321 its reverse (123421504622), we get a palindrome (349826628943).

The spelling of 226405124321 in words is "two hundred twenty-six billion, four hundred five million, one hundred twenty-four thousand, three hundred twenty-one".