226103331581 has 4 divisors (see below), whose sum is σ = 226172458464. Its totient is φ = 226034204700.

The previous prime is 226103331527. The next prime is 226103331589. The reversal of 226103331581 is 185133301622.

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: 185133301622 = 2 ⋅92566650811.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226103331581 is a prime.

It is a super-2 number, since 2×226103331581² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226103331589) 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, 34558535 + ... + 34565076.

It is an arithmetic number, because the mean of its divisors is an integer number (56543114616).

Almost surely, 2^226103331581 is an apocalyptic number.

It is an amenable number.

226103331581 is a deficient number, since it is larger than the sum of its proper divisors (69126883).

226103331581 is an equidigital number, since it uses as much as digits as its factorization.

226103331581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69126882.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 226103331581 in words is "two hundred twenty-six billion, one hundred three million, three hundred thirty-one thousand, five hundred eighty-one".