211315204312466 has 4 divisors (see below), whose sum is σ = 316972806468702. Its totient is φ = 105657602156232.

The previous prime is 211315204312451. The next prime is 211315204312483. The reversal of 211315204312466 is 664213402513112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 211288871136841 + 26333175625 = 14535779^2 + 162275^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52828801078115 + ... + 52828801078118.

Almost surely, 2^{211315204312466} is an apocalyptic number.

211315204312466 is a deficient number, since it is larger than the sum of its proper divisors (105657602156236).

211315204312466 is a wasteful number, since it uses less digits than its factorization.

211315204312466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105657602156235.

The product of its (nonzero) digits is 207360, while the sum is 41.

Adding to 211315204312466 its reverse (664213402513112), we get a palindrome (875528606825578).

The spelling of 211315204312466 in words is "two hundred eleven trillion, three hundred fifteen billion, two hundred four million, three hundred twelve thousand, four hundred sixty-six".