1223330225 has 12 divisors (see below), whose sum is σ = 1633616796. Its totient is φ = 903382080.

The previous prime is 1223330221. The next prime is 1223330237. The reversal of 1223330225 is 5220333221.

It can be written as a sum of positive squares in 6 ways, for example, as 448041889 + 775288336 = 21167^2 + 27844^2 .

It is not a de Polignac number, because 1223330225 - 2² = 1223330221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1223330225.

It is not an unprimeable number, because it can be changed into a prime (1223330221) 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, 1881722 + ... + 1882371.

It is an arithmetic number, because the mean of its divisors is an integer number (136134733).

Almost surely, 2^1223330225 is an apocalyptic number.

It is an amenable number.

1223330225 is a deficient number, since it is larger than the sum of its proper divisors (410286571).

1223330225 is a wasteful number, since it uses less digits than its factorization.

1223330225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3764116 (or 3764111 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 1223330225 is about 34976.1379371708. The cubic root of 1223330225 is about 1069.5010994117.

Adding to 1223330225 its reverse (5220333221), we get a palindrome (6443663446).

The spelling of 1223330225 in words is "one billion, two hundred twenty-three million, three hundred thirty thousand, two hundred twenty-five".