210221000010012 has 24 divisors (see below), whose sum is σ = 490965268614912. Its totient is φ = 70009437823600.

The previous prime is 210221000009941. The next prime is 210221000010023. The reversal of 210221000010012 is 210010000122012.

210221000010012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 210221000010012.

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, 8028592164 + ... + 8028618347.

It is an arithmetic number, because the mean of its divisors is an integer number (20456886192288).

Almost surely, 2^{210221000010012} is an apocalyptic number.

It is an amenable number.

210221000010012 is an abundant number, since it is smaller than the sum of its proper divisors (280744268604900).

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

210221000010012 is a wasteful number, since it uses less digits than its factorization.

210221000010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16057211609 (or 16057211607 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210221000010012 its reverse (210010000122012), we get a palindrome (420231000132024).

The spelling of 210221000010012 in words is "two hundred ten trillion, two hundred twenty-one billion, ten thousand, twelve".