12122102021212 has 24 divisors (see below), whose sum is σ = 21276675114912. Its totient is φ = 6043075598400.

The previous prime is 12122102021189. The next prime is 12122102021231. The reversal of 12122102021212 is 21212020122121.

12122102021212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12122102021212.

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, 896239 + ... + 5004742.

It is an arithmetic number, because the mean of its divisors is an integer number (886528129788).

Almost surely, 2^{12122102021212} is an apocalyptic number.

It is an amenable number.

12122102021212 is a deficient number, since it is larger than the sum of its proper divisors (9154573093700).

12122102021212 is a wasteful number, since it uses less digits than its factorization.

12122102021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5902509 (or 5902507 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12122102021212 its reverse (21212020122121), we get a palindrome (33334122143333).

The spelling of 12122102021212 in words is "twelve trillion, one hundred twenty-two billion, one hundred two million, twenty-one thousand, two hundred twelve".