212216565550207 has 8 divisors (see below), whose sum is σ = 216375953186592. Its totient is φ = 208079127189600.

The previous prime is 212216565550193. The next prime is 212216565550237. The reversal of 212216565550207 is 702055565612212.

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 a de Polignac number, because none of the positive numbers 2^k-212216565550207 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 (212216565550237) 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, 5487299419 + ... + 5487338092.

It is an arithmetic number, because the mean of its divisors is an integer number (27046994148324).

Almost surely, 2^{212216565550207} is an apocalyptic number.

212216565550207 is a deficient number, since it is larger than the sum of its proper divisors (4159387636385).

212216565550207 is a wasteful number, since it uses less digits than its factorization.

212216565550207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10974637889.

The product of its (nonzero) digits is 2520000, while the sum is 49.

The spelling of 212216565550207 in words is "two hundred twelve trillion, two hundred sixteen billion, five hundred sixty-five million, five hundred fifty thousand, two hundred seven".