11822222 has 12 divisors (see below), whose sum is σ = 18326808. Its totient is φ = 5719500.

The previous prime is 11822221. The next prime is 11822231. The reversal of 11822222 is 22222811.

It is a happy number.

11822222 is a modest number, since divided by 2222 gives 1182 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 11822194 and 11822203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11822221) 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 5 ways as a sum of consecutive naturals, for example, 1154 + ... + 4997.

It is an arithmetic number, because the mean of its divisors is an integer number (1527234).

Almost surely, 2^11822222 is an apocalyptic number.

11822222 is a deficient number, since it is larger than the sum of its proper divisors (6504586).

11822222 is an equidigital number, since it uses as much as digits as its factorization.

11822222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6215 (or 6184 counting only the distinct ones).

The product of its digits is 256, while the sum is 20.

The square root of 11822222 is about 3438.3458232121. The cubic root of 11822222 is about 227.8066355841.

The spelling of 11822222 in words is "eleven million, eight hundred twenty-two thousand, two hundred twenty-two".