22230912 has 128 divisors (see below), whose sum is σ = 68054400. Its totient is φ = 6359040.

The previous prime is 22230911. The next prime is 22230913. The reversal of 22230912 is 21903222.

It is an interprime number because it is at equal distance from previous prime (22230911) and next prime (22230913).

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22230911) 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 15 ways as a sum of consecutive naturals, for example, 80118 + ... + 80394.

It is an arithmetic number, because the mean of its divisors is an integer number (531675).

Almost surely, 2^22230912 is an apocalyptic number.

22230912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22230912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34027200).

22230912 is an abundant number, since it is smaller than the sum of its proper divisors (45823488).

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

22230912 is a wasteful number, since it uses less digits than its factorization.

22230912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 22230912 is about 4714.9668079426. The cubic root of 22230912 is about 281.1808632037.

The spelling of 22230912 in words is "twenty-two million, two hundred thirty thousand, nine hundred twelve".