225211223312 has 20 divisors (see below), whose sum is σ = 436703567040. Its totient is φ = 112513528608.

The previous prime is 225211223311. The next prime is 225211223351. The reversal of 225211223312 is 213322112522.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (225211223311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5735012 + ... + 5774147.

It is an arithmetic number, because the mean of its divisors is an integer number (21835178352).

Almost surely, 2^225211223312 is an apocalyptic number.

It is an amenable number.

225211223312 is a deficient number, since it is larger than the sum of its proper divisors (211492343728).

225211223312 is a wasteful number, since it uses less digits than its factorization.

225211223312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11510390 (or 11510384 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

Adding to 225211223312 its reverse (213322112522), we get a palindrome (438533335834).

The spelling of 225211223312 in words is "two hundred twenty-five billion, two hundred eleven million, two hundred twenty-three thousand, three hundred twelve".