212110216365 has 16 divisors (see below), whose sum is σ = 339422280768. Its totient is φ = 113110137216.

The previous prime is 212110216319. The next prime is 212110216403. The reversal of 212110216365 is 563612011212.

It is not a de Polignac number, because 212110216365 - 2⁷ = 212110216237 is a prime.

It is a super-2 number, since 2×212110216365² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 842007 + ... + 1064516.

It is an arithmetic number, because the mean of its divisors is an integer number (21213892548).

Almost surely, 2^212110216365 is an apocalyptic number.

It is an amenable number.

212110216365 is a deficient number, since it is larger than the sum of its proper divisors (127312064403).

212110216365 is a wasteful number, since it uses less digits than its factorization.

212110216365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913948.

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 212110216365 its reverse (563612011212), we get a palindrome (775722227577).

The spelling of 212110216365 in words is "two hundred twelve billion, one hundred ten million, two hundred sixteen thousand, three hundred sixty-five".