211330032212 has 24 divisors (see below), whose sum is σ = 398582088072. Its totient is φ = 97461936000.

The previous prime is 211330032209. The next prime is 211330032293. The reversal of 211330032212 is 212230033112.

It can be written as a sum of positive squares in 4 ways, for example, as 44485559056 + 166844473156 = 210916^2 + 408466^2 .

It is a super-2 number, since 2×211330032212² (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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1494239 + ... + 1629542.

It is an arithmetic number, because the mean of its divisors is an integer number (16607587003).

Almost surely, 2^211330032212 is an apocalyptic number.

It is an amenable number.

211330032212 is a deficient number, since it is larger than the sum of its proper divisors (187252055860).

211330032212 is a wasteful number, since it uses less digits than its factorization.

211330032212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3125099 (or 3125097 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 211330032212 its reverse (212230033112), we get a palindrome (423560065324).

The spelling of 211330032212 in words is "two hundred eleven billion, three hundred thirty million, thirty-two thousand, two hundred twelve".