23331222 has 24 divisors (see below), whose sum is σ = 50777064. Its totient is φ = 7742304.

The previous prime is 23331199. The next prime is 23331229. The reversal of 23331222 is 22213332.

It is a happy number.

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 junction number, because it is equal to n+sod(n) for n = 23331195 and 23331204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23331229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1413 + ... + 6975.

It is an arithmetic number, because the mean of its divisors is an integer number (2115711).

Almost surely, 2^23331222 is an apocalyptic number.

23331222 is an abundant number, since it is smaller than the sum of its proper divisors (27445842).

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

23331222 is a wasteful number, since it uses less digits than its factorization.

23331222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5804 (or 5801 counting only the distinct ones).

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

The square root of 23331222 is about 4830.2403666898. The cubic root of 23331222 is about 285.7453436000.

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

The spelling of 23331222 in words is "twenty-three million, three hundred thirty-one thousand, two hundred twenty-two".