11556222 has 8 divisors (see below), whose sum is σ = 23112456. Its totient is φ = 3852072.

The previous prime is 11556221. The next prime is 11556257. The reversal of 11556222 is 22265511.

It is a happy number.

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

11556222 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 11556192 and 11556201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11556221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 963013 + ... + 963024.

It is an arithmetic number, because the mean of its divisors is an integer number (2889057).

Almost surely, 2^11556222 is an apocalyptic number.

11556222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11556222 is a wasteful number, since it uses less digits than its factorization.

11556222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926042.

The product of its digits is 1200, while the sum is 24.

The square root of 11556222 is about 3399.4443663634. Note that the first 3 decimals coincide. The cubic root of 11556222 is about 226.0851090418.

The spelling of 11556222 in words is "eleven million, five hundred fifty-six thousand, two hundred twenty-two".