225321330220 has 48 divisors (see below), whose sum is σ = 569232840960. Its totient is φ = 73187077824.

The previous prime is 225321330193. The next prime is 225321330229. The reversal of 225321330220 is 22033123522.

It is a super-2 number, since 2×225321330220² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (225321330229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42350974 + ... + 42356293.

It is an arithmetic number, because the mean of its divisors is an integer number (11859017520).

Almost surely, 2^225321330220 is an apocalyptic number.

225321330220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225321330220 is an abundant number, since it is smaller than the sum of its proper divisors (343911510740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225321330220 is a wasteful number, since it uses less digits than its factorization.

225321330220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84707302 (or 84707300 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 225321330220 its reverse (22033123522), we get a palindrome (247354453742).

The spelling of 225321330220 in words is "two hundred twenty-five billion, three hundred twenty-one million, three hundred thirty thousand, two hundred twenty".