20091110822 has 8 divisors (see below), whose sum is σ = 30245463696. Its totient is φ = 10009289592.

The previous prime is 20091110803. The next prime is 20091110873. The reversal of 20091110822 is 22801119002.

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 = 20091110791 and 20091110800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18132218 + ... + 18133325.

It is an arithmetic number, because the mean of its divisors is an integer number (3780682962).

Almost surely, 2^20091110822 is an apocalyptic number.

20091110822 is a deficient number, since it is larger than the sum of its proper divisors (10154352874).

20091110822 is a wasteful number, since it uses less digits than its factorization.

20091110822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36265822.

The product of its (nonzero) digits is 576, while the sum is 26.

Adding to 20091110822 its reverse (22801119002), we get a palindrome (42892229824).

The spelling of 20091110822 in words is "twenty billion, ninety-one million, one hundred ten thousand, eight hundred twenty-two".