225233420412 has 288 divisors, whose sum is σ = 744733592064. Its totient is φ = 51158822400.

The previous prime is 225233420387. The next prime is 225233420519. The reversal of 225233420412 is 214024332522.

It is a self number, because there is not a number n which added to its sum of digits gives 225233420412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4310362 + ... + 4362302.

It is an arithmetic number, because the mean of its divisors is an integer number (2585880528).

Almost surely, 2^225233420412 is an apocalyptic number.

225233420412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225233420412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372366796032).

225233420412 is an abundant number, since it is smaller than the sum of its proper divisors (519500171652).

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

225233420412 is a wasteful number, since it uses less digits than its factorization.

225233420412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52017 (or 51996 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 225233420412 its reverse (214024332522), we get a palindrome (439257752934).

The spelling of 225233420412 in words is "two hundred twenty-five billion, two hundred thirty-three million, four hundred twenty thousand, four hundred twelve".