212000120011212 has 144 divisors (see below), whose sum is σ = 550284022018080. Its totient is φ = 63449138847744.

The previous prime is 212000120011181. The next prime is 212000120011289. The reversal of 212000120011212 is 212110021000212.

It is a junction number, because it is equal to n+sod(n) for n = 212000120011191 and 212000120011200.

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 47 ways as a sum of consecutive naturals, for example, 255683964 + ... + 256511772.

It is an arithmetic number, because the mean of its divisors is an integer number (3821416819570).

Almost surely, 2^{212000120011212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212000120011212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275142011009040).

212000120011212 is an abundant number, since it is smaller than the sum of its proper divisors (338283902006868).

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

212000120011212 is a wasteful number, since it uses less digits than its factorization.

212000120011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831292 (or 831277 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212000120011212 its reverse (212110021000212), we get a palindrome (424110141011424).

The spelling of 212000120011212 in words is "two hundred twelve trillion, one hundred twenty million, eleven thousand, two hundred twelve".