211302122312 has 8 divisors (see below), whose sum is σ = 396191479350. Its totient is φ = 105651061152.

The previous prime is 211302122303. The next prime is 211302122351. The reversal of 211302122312 is 213221203112.

It can be written as a sum of positive squares in only one way, i.e., 199850126116 + 11451996196 = 447046^2 + 107014^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13206382637 + ... + 13206382652.

Almost surely, 2^211302122312 is an apocalyptic number.

It is an amenable number.

211302122312 is a deficient number, since it is larger than the sum of its proper divisors (184889357038).

211302122312 is a wasteful number, since it uses less digits than its factorization.

211302122312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26412765295 (or 26412765291 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 211302122312 its reverse (213221203112), we get a palindrome (424523325424).

The spelling of 211302122312 in words is "two hundred eleven billion, three hundred two million, one hundred twenty-two thousand, three hundred twelve".