210221211010212 has 96 divisors (see below), whose sum is σ = 577101903719040. Its totient is φ = 65949001666560.

The previous prime is 210221211010163. The next prime is 210221211010247. The reversal of 210221211010212 is 212010112122012.

210221211010212 is a `hidden beast` number, since 2 + 10 + 221 + 211 + 0 + 10 + 212 = 666.

210221211010212 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 (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41866287 + ... + 46617897.

It is an arithmetic number, because the mean of its divisors is an integer number (6011478163740).

Almost surely, 2^{210221211010212} is an apocalyptic number.

It is an amenable number.

210221211010212 is an abundant number, since it is smaller than the sum of its proper divisors (366880692708828).

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

210221211010212 is a wasteful number, since it uses less digits than its factorization.

210221211010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4775738 (or 4775730 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 210221211010212 its reverse (212010112122012), we get a palindrome (422231323132224).

The spelling of 210221211010212 in words is "two hundred ten trillion, two hundred twenty-one billion, two hundred eleven million, ten thousand, two hundred twelve".