22213332 has 48 divisors (see below), whose sum is σ = 58262400. Its totient is φ = 7318080.

The previous prime is 22213313. The next prime is 22213343. The reversal of 22213332 is 23331222.

It is a happy number.

It is a super-3 number, since 3×22213332³ (a number of 23 digits) contains 333 as substring.

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.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8457 + ... + 10767.

It is an arithmetic number, because the mean of its divisors is an integer number (1213800).

Almost surely, 2^22213332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22213332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29131200).

22213332 is an abundant number, since it is smaller than the sum of its proper divisors (36049068).

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

22213332 is a wasteful number, since it uses less digits than its factorization.

22213332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2413 (or 2405 counting only the distinct ones).

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

The square root of 22213332 is about 4713.1021631193. The cubic root of 22213332 is about 281.1067252474.

Adding to 22213332 its reverse (23331222), we get a palindrome (45544554).

The spelling of 22213332 in words is "twenty-two million, two hundred thirteen thousand, three hundred thirty-two".