1225310512 has 20 divisors (see below), whose sum is σ = 2374730200. Its totient is φ = 612476928.

The previous prime is 1225310507. The next prime is 1225310519. The reversal of 1225310512 is 2150135221.

It is not an unprimeable number, because it can be changed into a prime (1225310519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58864 + ... + 76912.

It is an arithmetic number, because the mean of its divisors is an integer number (118736510).

Almost surely, 2^1225310512 is an apocalyptic number.

It is an amenable number.

1225310512 is a deficient number, since it is larger than the sum of its proper divisors (1149419688).

1225310512 is a wasteful number, since it uses less digits than its factorization.

1225310512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22300 (or 22294 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1225310512 is about 35004.4356046487. The cubic root of 1225310512 is about 1070.0778794451.

Adding to 1225310512 its reverse (2150135221), we get a palindrome (3375445733).

The spelling of 1225310512 in words is "one billion, two hundred twenty-five million, three hundred ten thousand, five hundred twelve".