211212344366 has 8 divisors (see below), whose sum is σ = 317817945000. Its totient is φ = 105273029368.

The previous prime is 211212344351. The next prime is 211212344377. The reversal of 211212344366 is 663443212112.

211212344366 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×211212344366² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 166570616 + ... + 166571883.

It is an arithmetic number, because the mean of its divisors is an integer number (39727243125).

Almost surely, 2^211212344366 is an apocalyptic number.

211212344366 is a deficient number, since it is larger than the sum of its proper divisors (106605600634).

211212344366 is a wasteful number, since it uses less digits than its factorization.

211212344366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333142818.

The product of its digits is 41472, while the sum is 35.

Adding to 211212344366 its reverse (663443212112), we get a palindrome (874655556478).

The spelling of 211212344366 in words is "two hundred eleven billion, two hundred twelve million, three hundred forty-four thousand, three hundred sixty-six".