22231330 has 48 divisors (see below), whose sum is σ = 46347840. Its totient is φ = 7650720.

The previous prime is 22231241. The next prime is 22231331. The reversal of 22231330 is 3313222.

It is not an unprimeable number, because it can be changed into a prime (22231331) 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 23 ways as a sum of consecutive naturals, for example, 22507 + ... + 23473.

It is an arithmetic number, because the mean of its divisors is an integer number (965580).

Almost surely, 2^22231330 is an apocalyptic number.

22231330 is an abundant number, since it is smaller than the sum of its proper divisors (24116510).

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

22231330 is a wasteful number, since it uses less digits than its factorization.

22231330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015 (or 1004 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 22231330 is about 4715.0111346634. The cubic root of 22231330 is about 281.1826255076.

Adding to 22231330 its reverse (3313222), we get a palindrome (25544552).

It can be divided in two parts, 2223 and 1330, that added together give a palindrome (3553).

The spelling of 22231330 in words is "twenty-two million, two hundred thirty-one thousand, three hundred thirty".