212001021021012 has 48 divisors (see below), whose sum is σ = 495674661081600. Its totient is φ = 70523417725920.

The previous prime is 212001021020911. The next prime is 212001021021047. The reversal of 212001021021012 is 210120120100212.

It is a junction number, because it is equal to n+sod(n) for n = 212001021020982 and 212001021021000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20039539 + ... + 28732997.

It is an arithmetic number, because the mean of its divisors is an integer number (10326555439200).

Almost surely, 2^{212001021021012} is an apocalyptic number.

It is an amenable number.

212001021021012 is an abundant number, since it is smaller than the sum of its proper divisors (283673640060588).

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

212001021021012 is a wasteful number, since it uses less digits than its factorization.

212001021021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8697596 (or 8697594 counting only the distinct ones).

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

Adding to 212001021021012 its reverse (210120120100212), we get a palindrome (422121141121224).

The spelling of 212001021021012 in words is "two hundred twelve trillion, one billion, twenty-one million, twenty-one thousand, twelve".