22233312 has 48 divisors (see below), whose sum is σ = 64849680. Its totient is φ = 7410816.

The previous prime is 22233311. The next prime is 22233313. The reversal of 22233312 is 21333222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22233311) and next prime (22233313).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22233311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12003 + ... + 13730.

It is an arithmetic number, because the mean of its divisors is an integer number (1351035).

Almost surely, 2^22233312 is an apocalyptic number.

It is an amenable number.

22233312 is an abundant number, since it is smaller than the sum of its proper divisors (42616368).

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

22233312 is a wasteful number, since it uses less digits than its factorization.

22233312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25752 (or 25738 counting only the distinct ones).

The product of its digits is 432, while the sum is 18.

The square root of 22233312 is about 4715.2213097584. The cubic root of 22233312 is about 281.1909813939.

Adding to 22233312 its reverse (21333222), we get a palindrome (43566534).

The spelling of 22233312 in words is "twenty-two million, two hundred thirty-three thousand, three hundred twelve".