212021013012 has 12 divisors (see below), whose sum is σ = 494715697056. Its totient is φ = 70673671000.

The previous prime is 212021012911. The next prime is 212021013059. The reversal of 212021013012 is 210310120212.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 212021012982 and 212021013000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8834208864 + ... + 8834208887.

It is an arithmetic number, because the mean of its divisors is an integer number (41226308088).

Almost surely, 2^212021013012 is an apocalyptic number.

It is an amenable number.

212021013012 is an abundant number, since it is smaller than the sum of its proper divisors (282694684044).

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

212021013012 is a wasteful number, since it uses less digits than its factorization.

212021013012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17668417758 (or 17668417756 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 212021013012 its reverse (210310120212), we get a palindrome (422331133224).

The spelling of 212021013012 in words is "two hundred twelve billion, twenty-one million, thirteen thousand, twelve".