212120202012 has 24 divisors (see below), whose sum is σ = 494966679312. Its totient is φ = 70703942400.

The previous prime is 212120202001. The next prime is 212120202013. The reversal of 212120202012 is 210202021212.

212120202012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212120202012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212120201982 and 212120202000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212120202013) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 19939 + ... + 651642.

It is an arithmetic number, because the mean of its divisors is an integer number (20623611638).

Almost surely, 2^212120202012 is an apocalyptic number.

It is an amenable number.

212120202012 is an abundant number, since it is smaller than the sum of its proper divisors (282846477300).

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

212120202012 is a wasteful number, since it uses less digits than its factorization.

212120202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697909 (or 697907 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212120202012 its reverse (210202021212), we get a palindrome (422322223224).

The spelling of 212120202012 in words is "two hundred twelve billion, one hundred twenty million, two hundred two thousand, twelve".