211662244226 has 8 divisors (see below), whose sum is σ = 318507723084. Its totient is φ = 105493003200.

The previous prime is 211662244177. The next prime is 211662244229. The reversal of 211662244226 is 622442266112.

It can be written as a sum of positive squares in 2 ways, for example, as 127967175625 + 83695068601 = 357725^2 + 289301^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 211662244226.

It is not an unprimeable number, because it can be changed into a prime (211662244229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169058675 + ... + 169059926.

Almost surely, 2^211662244226 is an apocalyptic number.

211662244226 is a deficient number, since it is larger than the sum of its proper divisors (106845478858).

211662244226 is a wasteful number, since it uses less digits than its factorization.

211662244226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338118916.

The product of its digits is 110592, while the sum is 38.

The spelling of 211662244226 in words is "two hundred eleven billion, six hundred sixty-two million, two hundred forty-four thousand, two hundred twenty-six".