212222112021212 has 12 divisors (see below), whose sum is σ = 371390590541040. Its totient is φ = 106110514723776.

The previous prime is 212222112021203. The next prime is 212222112021233. The reversal of 212222112021212 is 212120211222212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134438912 + ... + 136008327.

It is an arithmetic number, because the mean of its divisors is an integer number (30949215878420).

Almost surely, 2^{212222112021212} is an apocalyptic number.

It is an amenable number.

212222112021212 is a deficient number, since it is larger than the sum of its proper divisors (159168478519828).

212222112021212 is a wasteful number, since it uses less digits than its factorization.

212222112021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270643420 (or 270643418 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 212222112021212 its reverse (212120211222212), we get a palindrome (424342323243424).

The spelling of 212222112021212 in words is "two hundred twelve trillion, two hundred twenty-two billion, one hundred twelve million, twenty-one thousand, two hundred twelve".