12091822 has 8 divisors (see below), whose sum is σ = 18628056. Its totient is φ = 5882472.

The previous prime is 12091789. The next prime is 12091861. The reversal of 12091822 is 22819021.

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

It is a congruent number.

It is an unprimeable number.

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, 81628 + ... + 81775.

It is an arithmetic number, because the mean of its divisors is an integer number (2328507).

Almost surely, 2^12091822 is an apocalyptic number.

12091822 is a deficient number, since it is larger than the sum of its proper divisors (6536234).

12091822 is a wasteful number, since it uses less digits than its factorization.

12091822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163442.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 12091822 is about 3477.3297226464. The cubic root of 12091822 is about 229.5253095688.

The spelling of 12091822 in words is "twelve million, ninety-one thousand, eight hundred twenty-two".