216101117 has 8 divisors (see below), whose sum is σ = 228472800. Its totient is φ = 203829264.

The previous prime is 216101099. The next prime is 216101131. The reversal of 216101117 is 711101612.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-216101117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216101177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20483 + ... + 29184.

It is an arithmetic number, because the mean of its divisors is an integer number (28559100).

Almost surely, 2^216101117 is an apocalyptic number.

It is an amenable number.

216101117 is a deficient number, since it is larger than the sum of its proper divisors (12371683).

216101117 is a wasteful number, since it uses less digits than its factorization.

216101117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49915.

The product of its (nonzero) digits is 84, while the sum is 20.

The square root of 216101117 is about 14700.3781243885. The cubic root of 216101117 is about 600.0936122457.

Adding to 216101117 its reverse (711101612), we get a palindrome (927202729).

The spelling of 216101117 in words is "two hundred sixteen million, one hundred one thousand, one hundred seventeen".