211320212012 has 36 divisors (see below), whose sum is σ = 463278931920. Its totient is φ = 83599203744.

The previous prime is 211320212009. The next prime is 211320212017. The reversal of 211320212012 is 210212023112.

It is not an unprimeable number, because it can be changed into a prime (211320212017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41465312 + ... + 41470407.

It is an arithmetic number, because the mean of its divisors is an integer number (12868859220).

Almost surely, 2^211320212012 is an apocalyptic number.

It is an amenable number.

211320212012 is an abundant number, since it is smaller than the sum of its proper divisors (251958719908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211320212012 is a wasteful number, since it uses less digits than its factorization.

211320212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82935750 (or 82935741 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 211320212012 its reverse (210212023112), we get a palindrome (421532235124).

The spelling of 211320212012 in words is "two hundred eleven billion, three hundred twenty million, two hundred twelve thousand, twelve".