226121 has 4 divisors (see below), whose sum is σ = 258432. Its totient is φ = 193812.

The previous prime is 226103. The next prime is 226123. The reversal of 226121 is 121622.

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, and also an emirpimes, since its reverse is a distinct semiprime: 121622 = 2 ⋅60811.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226121 is a prime.

It is a super-2 number, since 2×226121² = 102261413282, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 226096 and 226105.

It is not an unprimeable number, because it can be changed into a prime (226123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16145 + ... + 16158.

It is an arithmetic number, because the mean of its divisors is an integer number (64608).

2²²⁶¹²¹ is an apocalyptic number.

It is an amenable number.

226121 is a deficient number, since it is larger than the sum of its proper divisors (32311).

226121 is an equidigital number, since it uses as much as digits as its factorization.

226121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32310.

The product of its digits is 48, while the sum is 14.

The square root of 226121 is about 475.5218186372. The cubic root of 226121 is about 60.9228622742.

Adding to 226121 its reverse (121622), we get a palindrome (347743).

The spelling of 226121 in words is "two hundred twenty-six thousand, one hundred twenty-one".