11822215 has 8 divisors (see below), whose sum is σ = 14261328. Its totient is φ = 9408000.

The previous prime is 11822201. The next prime is 11822221. The reversal of 11822215 is 51222811.

11822215 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11822215 - 2⁵ = 11822183 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 5161 + ... + 7090.

It is an arithmetic number, because the mean of its divisors is an integer number (1782666).

Almost surely, 2^11822215 is an apocalyptic number.

11822215 is a deficient number, since it is larger than the sum of its proper divisors (2439113).

11822215 is a wasteful number, since it uses less digits than its factorization.

11822215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12449.

The product of its digits is 320, while the sum is 22.

The square root of 11822215 is about 3438.3448052806. The cubic root of 11822215 is about 227.8065906222.

The spelling of 11822215 in words is "eleven million, eight hundred twenty-two thousand, two hundred fifteen".