212102221000212 has 72 divisors (see below), whose sum is σ = 536694871440000. Its totient is φ = 70628558318208.

The previous prime is 212102221000183. The next prime is 212102221000223. The reversal of 212102221000212 is 212000122201212.

It is a happy number.

212102221000212 is a `hidden beast` number, since 21 + 210 + 2 + 221 + 0 + 0 + 0 + 212 = 666.

212102221000212 is digitally balanced in base 2 and base 4, because in such bases 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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 183821664 + ... + 184971912.

Almost surely, 2^{212102221000212} is an apocalyptic number.

It is an amenable number.

212102221000212 is an abundant number, since it is smaller than the sum of its proper divisors (324592650439788).

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

212102221000212 is a wasteful number, since it uses less digits than its factorization.

212102221000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155485 (or 1155480 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212102221000212 its reverse (212000122201212), we get a palindrome (424102343201424).

The spelling of 212102221000212 in words is "two hundred twelve trillion, one hundred two billion, two hundred twenty-one million, two hundred twelve", and thus it is an aban number.