215112225144 has 64 divisors (see below), whose sum is σ = 556597332000. Its totient is φ = 69197596160.

The previous prime is 215112225037. The next prime is 215112225149. The reversal of 215112225144 is 441522211512.

215112225144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215112225149) 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, 1365334 + ... + 1514714.

Almost surely, 2^215112225144 is an apocalyptic number.

215112225144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

215112225144 is an abundant number, since it is smaller than the sum of its proper divisors (341485106856).

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

215112225144 is a wasteful number, since it uses less digits than its factorization.

215112225144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151488 (or 151484 counting only the distinct ones).

The product of its digits is 6400, while the sum is 30.

Adding to 215112225144 its reverse (441522211512), we get a palindrome (656634436656).

The spelling of 215112225144 in words is "two hundred fifteen billion, one hundred twelve million, two hundred twenty-five thousand, one hundred forty-four".