217442211213 has 8 divisors (see below), whose sum is σ = 294836896800. Its totient is φ = 142504499888.

The previous prime is 217442211211. The next prime is 217442211221. The reversal of 217442211213 is 312112244712.

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 217442211213 - 2¹ = 217442211211 is a prime.

It is a super-3 number, since 3×217442211213³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217442211211) 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, 614243358 + ... + 614243711.

It is an arithmetic number, because the mean of its divisors is an integer number (36854612100).

Almost surely, 2^217442211213 is an apocalyptic number.

It is an amenable number.

217442211213 is a deficient number, since it is larger than the sum of its proper divisors (77394685587).

217442211213 is a wasteful number, since it uses less digits than its factorization.

217442211213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228487131.

The product of its digits is 5376, while the sum is 30.

Adding to 217442211213 its reverse (312112244712), we get a palindrome (529554455925).

The spelling of 217442211213 in words is "two hundred seventeen billion, four hundred forty-two million, two hundred eleven thousand, two hundred thirteen".