811912226 has 8 divisors (see below), whose sum is σ = 1223330304. Its totient is φ = 404135460.

The previous prime is 811912223. The next prime is 811912253. The reversal of 811912226 is 622219118.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 811912192 and 811912201.

It is not an unprimeable number, because it can be changed into a prime (811912223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 909770 + ... + 910661.

It is an arithmetic number, because the mean of its divisors is an integer number (152916288).

Almost surely, 2^811912226 is an apocalyptic number.

811912226 is a deficient number, since it is larger than the sum of its proper divisors (411418078).

811912226 is a wasteful number, since it uses less digits than its factorization.

811912226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820656.

The product of its digits is 3456, while the sum is 32.

The square root of 811912226 is about 28494.0735241559. The cubic root of 811912226 is about 932.9027223067.

The spelling of 811912226 in words is "eight hundred eleven million, nine hundred twelve thousand, two hundred twenty-six".