215112031250 has 96 divisors (see below), whose sum is σ = 417976859664. Its totient is φ = 83027000000.

The previous prime is 215112031247. The next prime is 215112031261. The reversal of 215112031250 is 52130211512.

215112031250 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 24 ways, for example, as 109263963601 + 105848067649 = 330551^2 + 325343^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 131405432 + ... + 131407068.

Almost surely, 2^215112031250 is an apocalyptic number.

215112031250 is a deficient number, since it is larger than the sum of its proper divisors (202864828414).

215112031250 is an frugal number, since it uses more digits than its factorization.

215112031250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732 (or 1673 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 215112031250 its reverse (52130211512), we get a palindrome (267242242762).

The spelling of 215112031250 in words is "two hundred fifteen billion, one hundred twelve million, thirty-one thousand, two hundred fifty".