212020111212 has 384 divisors, whose sum is σ = 642477588480. Its totient is φ = 52929469440.

The previous prime is 212020111183. The next prime is 212020111229. The reversal of 212020111212 is 212111020212.

212020111212 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 = 212020111191 and 212020111200.

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 127 ways as a sum of consecutive naturals, for example, 590585089 + ... + 590585447.

It is an arithmetic number, because the mean of its divisors is an integer number (1673118720).

Almost surely, 2^212020111212 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 212020111212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321238794240).

212020111212 is an abundant number, since it is smaller than the sum of its proper divisors (430457477268).

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

212020111212 is a wasteful number, since it uses less digits than its factorization.

212020111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781 (or 779 counting only the distinct ones).

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

Adding to 212020111212 its reverse (212111020212), we get a palindrome (424131131424).

The spelling of 212020111212 in words is "two hundred twelve billion, twenty million, one hundred eleven thousand, two hundred twelve".