226402211 has 4 divisors (see below), whose sum is σ = 258745392. Its totient is φ = 194059032.

The previous prime is 226402201. The next prime is 226402219. The reversal of 226402211 is 112204622.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112204622 = 2 ⋅56102311.

It is a cyclic number.

It is not a de Polignac number, because 226402211 - 2²⁶ = 159293347 is a prime.

It is a super-2 number, since 2×226402211² = 102515922291377042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226402219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16171580 + ... + 16171593.

It is an arithmetic number, because the mean of its divisors is an integer number (64686348).

Almost surely, 2^226402211 is an apocalyptic number.

226402211 is a deficient number, since it is larger than the sum of its proper divisors (32343181).

226402211 is an equidigital number, since it uses as much as digits as its factorization.

226402211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32343180.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 226402211 is about 15046.6677706395. The cubic root of 226402211 is about 609.4810699112.

Adding to 226402211 its reverse (112204622), we get a palindrome (338606833).

The spelling of 226402211 in words is "two hundred twenty-six million, four hundred two thousand, two hundred eleven".