211662313312 has 48 divisors (see below), whose sum is σ = 422859884832. Its totient is φ = 104272358400.

The previous prime is 211662313301. The next prime is 211662313319. The reversal of 211662313312 is 213313266112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211662313319) 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, 2212062 + ... + 2305762.

It is an arithmetic number, because the mean of its divisors is an integer number (8809580934).

Almost surely, 2^211662313312 is an apocalyptic number.

It is an amenable number.

211662313312 is a deficient number, since it is larger than the sum of its proper divisors (211197571520).

211662313312 is an equidigital number, since it uses as much as digits as its factorization.

211662313312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94751 (or 94743 counting only the distinct ones).

The product of its digits is 7776, while the sum is 31.

Adding to 211662313312 its reverse (213313266112), we get a palindrome (424975579424).

The spelling of 211662313312 in words is "two hundred eleven billion, six hundred sixty-two million, three hundred thirteen thousand, three hundred twelve".