225556451112 has 128 divisors (see below), whose sum is σ = 622084976640. Its totient is φ = 67839728640.

The previous prime is 225556451101. The next prime is 225556451119. The reversal of 225556451112 is 211154655522.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (225556451119) 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, 1270003 + ... + 1436669.

It is an arithmetic number, because the mean of its divisors is an integer number (4860038880).

Almost surely, 2^225556451112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225556451112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311042488320).

225556451112 is an abundant number, since it is smaller than the sum of its proper divisors (396528525528).

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

225556451112 is a wasteful number, since it uses less digits than its factorization.

225556451112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166831 (or 166827 counting only the distinct ones).

The product of its digits is 120000, while the sum is 39.

The spelling of 225556451112 in words is "two hundred twenty-five billion, five hundred fifty-six million, four hundred fifty-one thousand, one hundred twelve".