211223303205 has 32 divisors (see below), whose sum is σ = 343060082688. Its totient is φ = 110952072000.

The previous prime is 211223303201. The next prime is 211223303227. The reversal of 211223303205 is 502303322112.

It is a happy number.

211223303205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211223303205 - 2² = 211223303201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211223303201) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 7373460 + ... + 7402050.

It is an arithmetic number, because the mean of its divisors is an integer number (10720627584).

Almost surely, 2^211223303205 is an apocalyptic number.

It is an amenable number.

211223303205 is a deficient number, since it is larger than the sum of its proper divisors (131836779483).

211223303205 is a wasteful number, since it uses less digits than its factorization.

211223303205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36017.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 211223303205 its reverse (502303322112), we get a palindrome (713526625317).

The spelling of 211223303205 in words is "two hundred eleven billion, two hundred twenty-three million, three hundred three thousand, two hundred five".