211212205847 has 8 divisors (see below), whose sum is σ = 212207678400. Its totient is φ = 210217369824.

The previous prime is 211212205829. The next prime is 211212205849. The reversal of 211212205847 is 748502212112.

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 211212205847 - 2¹⁶ = 211212140311 is a prime.

It is a super-2 number, since 2×211212205847² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211212205849) 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, 512729 + ... + 827837.

It is an arithmetic number, because the mean of its divisors is an integer number (26525959800).

Almost surely, 2^211212205847 is an apocalyptic number.

211212205847 is a deficient number, since it is larger than the sum of its proper divisors (995472553).

211212205847 is a wasteful number, since it uses less digits than its factorization.

211212205847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318265.

The product of its (nonzero) digits is 17920, while the sum is 35.

Adding to 211212205847 its reverse (748502212112), we get a palindrome (959714417959).

The spelling of 211212205847 in words is "two hundred eleven billion, two hundred twelve million, two hundred five thousand, eight hundred forty-seven".