217010832272 has 40 divisors (see below), whose sum is σ = 452851833336. Its totient is φ = 100147700736.

The previous prime is 217010832223. The next prime is 217010832323. The reversal of 217010832272 is 272238010712.

It can be written as a sum of positive squares in 4 ways, for example, as 141388032256 + 75622800016 = 376016^2 + 274996^2 .

It is a super-2 number, since 2×217010832272² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1988798 + ... + 2095074.

Almost surely, 2^217010832272 is an apocalyptic number.

It is an amenable number.

217010832272 is an abundant number, since it is smaller than the sum of its proper divisors (235841001064).

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

217010832272 is a wasteful number, since it uses less digits than its factorization.

217010832272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116115 (or 116109 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

Adding to 217010832272 its reverse (272238010712), we get a palindrome (489248842984).

The spelling of 217010832272 in words is "two hundred seventeen billion, ten million, eight hundred thirty-two thousand, two hundred seventy-two".