210021011010012 has 24 divisors (see below), whose sum is σ = 518875438966416. Its totient is φ = 65888944630528.

The previous prime is 210021011009983. The next prime is 210021011010061. The reversal of 210021011010012 is 210010110120012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 210021011010012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514757379723 + ... + 514757380130.

It is an arithmetic number, because the mean of its divisors is an integer number (21619809956934).

Almost surely, 2^{210021011010012} is an apocalyptic number.

It is an amenable number.

210021011010012 is an abundant number, since it is smaller than the sum of its proper divisors (308854427956404).

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

210021011010012 is a wasteful number, since it uses less digits than its factorization.

210021011010012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029514759877 (or 1029514759875 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 210021011010012 its reverse (210010110120012), we get a palindrome (420031121130024).

The spelling of 210021011010012 in words is "two hundred ten trillion, twenty-one billion, eleven million, ten thousand, twelve".