216712212167 has 8 divisors (see below), whose sum is σ = 238754049552. Its totient is φ = 195060496000.

The previous prime is 216712212137. The next prime is 216712212181. The reversal of 216712212167 is 761212217612.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 216712212167 - 2¹² = 216712208071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 216712212167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216712212107) 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, 97529138 + ... + 97531359.

It is an arithmetic number, because the mean of its divisors is an integer number (29844256194).

Almost surely, 2^216712212167 is an apocalyptic number.

216712212167 is a deficient number, since it is larger than the sum of its proper divisors (22041837385).

216712212167 is a wasteful number, since it uses less digits than its factorization.

216712212167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195060609.

The product of its digits is 28224, while the sum is 38.

Adding to 216712212167 its reverse (761212217612), we get a palindrome (977924429779).

Subtracting 216712212167 from its reverse (761212217612), we obtain a palindrome (544500005445).

The spelling of 216712212167 in words is "two hundred sixteen billion, seven hundred twelve million, two hundred twelve thousand, one hundred sixty-seven".