225312204442 has 64 divisors (see below), whose sum is σ = 372735627264. Its totient is φ = 101517857280.

The previous prime is 225312204413. The next prime is 225312204449. The reversal of 225312204442 is 244402213522.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (225312204449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137636448 + ... + 137638084.

It is an arithmetic number, because the mean of its divisors is an integer number (5823994176).

Almost surely, 2^225312204442 is an apocalyptic number.

225312204442 is a deficient number, since it is larger than the sum of its proper divisors (147423422822).

225312204442 is a wasteful number, since it uses less digits than its factorization.

225312204442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2423.

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 225312204442 its reverse (244402213522), we get a palindrome (469714417964).

The spelling of 225312204442 in words is "two hundred twenty-five billion, three hundred twelve million, two hundred four thousand, four hundred forty-two".