212011210012 has 60 divisors (see below), whose sum is σ = 435225362936. Its totient is φ = 90359206560.

The previous prime is 212011210009. The next prime is 212011210039. The reversal of 212011210012 is 210012110212.

212011210012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212011209974 and 212011210001.

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 19 ways as a sum of consecutive naturals, for example, 1677343 + ... + 1799305.

Almost surely, 2^212011210012 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 212011210012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217612681468).

212011210012 is an abundant number, since it is smaller than the sum of its proper divisors (223214152924).

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

212011210012 is a wasteful number, since it uses less digits than its factorization.

212011210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122176 (or 122153 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212011210012 its reverse (210012110212), we get a palindrome (422023320224).

The spelling of 212011210012 in words is "two hundred twelve billion, eleven million, two hundred ten thousand, twelve".