226732121 has 16 divisors (see below), whose sum is σ = 292429440. Its totient is φ = 170580480.

The previous prime is 226732117. The next prime is 226732139. The reversal of 226732121 is 121237622.

It is not a de Polignac number, because 226732121 - 2² = 226732117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (226732721) 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 in 15 ways as a sum of consecutive naturals, for example, 48536 + ... + 53001.

It is an arithmetic number, because the mean of its divisors is an integer number (18276840).

Almost surely, 2^226732121 is an apocalyptic number.

It is an amenable number.

226732121 is a deficient number, since it is larger than the sum of its proper divisors (65697319).

226732121 is a wasteful number, since it uses less digits than its factorization.

226732121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101584.

The product of its digits is 2016, while the sum is 26.

The square root of 226732121 is about 15057.6266722216. The cubic root of 226732121 is about 609.7769685401.

Adding to 226732121 its reverse (121237622), we get a palindrome (347969743).

The spelling of 226732121 in words is "two hundred twenty-six million, seven hundred thirty-two thousand, one hundred twenty-one".