12222328 has 8 divisors (see below), whose sum is σ = 22916880. Its totient is φ = 6111160.

The previous prime is 12222319. The next prime is 12222349. The reversal of 12222328 is 82322221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 12222299 and 12222308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 763888 + ... + 763903.

It is an arithmetic number, because the mean of its divisors is an integer number (2864610).

Almost surely, 2^12222328 is an apocalyptic number.

It is an amenable number.

12222328 is a deficient number, since it is larger than the sum of its proper divisors (10694552).

12222328 is a wasteful number, since it uses less digits than its factorization.

12222328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527797 (or 1527793 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 12222328 is about 3496.0446221409. The cubic root of 12222328 is about 230.3481055159.

Adding to 12222328 its reverse (82322221), we get a palindrome (94544549).

The spelling of 12222328 in words is "twelve million, two hundred twenty-two thousand, three hundred twenty-eight".