211323213212 has 12 divisors (see below), whose sum is σ = 369832536360. Its totient is φ = 105656774256.

The previous prime is 211323213197. The next prime is 211323213259. The reversal of 211323213212 is 212312323112.

211323213212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211323213212² (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, 1108787 + ... + 1285322.

It is an arithmetic number, because the mean of its divisors is an integer number (30819378030).

Almost surely, 2^211323213212 is an apocalyptic number.

It is an amenable number.

211323213212 is a deficient number, since it is larger than the sum of its proper divisors (158509323148).

211323213212 is a wasteful number, since it uses less digits than its factorization.

211323213212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416180 (or 2416178 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

Adding to 211323213212 its reverse (212312323112), we get a palindrome (423635536324).

The spelling of 211323213212 in words is "two hundred eleven billion, three hundred twenty-three million, two hundred thirteen thousand, two hundred twelve".