212011210111012 has 48 divisors (see below), whose sum is σ = 399644151543280. Its totient is φ = 97830620909568.

The previous prime is 212011210111003. The next prime is 212011210111039. The reversal of 212011210111012 is 210111012110212.

It can be written as a sum of positive squares in 8 ways, for example, as 159281159800896 + 52730050310116 = 12620664^2 + 7261546^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9149050258 + ... + 9149073430.

Almost surely, 2^{212011210111012} is an apocalyptic number.

It is an amenable number.

212011210111012 is a deficient number, since it is larger than the sum of its proper divisors (187632941432268).

212011210111012 is a wasteful number, since it uses less digits than its factorization.

212011210111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52832 (or 52830 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 212011210111012 its reverse (210111012110212), we get a palindrome (422122222221224).

The spelling of 212011210111012 in words is "two hundred twelve trillion, eleven billion, two hundred ten million, one hundred eleven thousand, twelve".