212221100110012 has 24 divisors (see below), whose sum is σ = 433104285941600. Its totient is φ = 90951900046560.

The previous prime is 212221100109959. The next prime is 212221100110027. The reversal of 212221100110012 is 210011001122212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77340049689 + ... + 77340052432.

Almost surely, 2^{212221100110012} is an apocalyptic number.

It is an amenable number.

212221100110012 is an abundant number, since it is smaller than the sum of its proper divisors (220883185831588).

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

212221100110012 is a wasteful number, since it uses less digits than its factorization.

212221100110012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154680102146 (or 154680102130 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212221100110012 its reverse (210011001122212), we get a palindrome (422232101232224).

The spelling of 212221100110012 in words is "two hundred twelve trillion, two hundred twenty-one billion, one hundred million, one hundred ten thousand, twelve".