12101213021212 has 24 divisors (see below), whose sum is σ = 25036992459360. Its totient is φ = 5007398491200.

The previous prime is 12101213021167. The next prime is 12101213021213. The reversal of 12101213021212 is 21212031210121.

It is a self number, because there is not a number n which added to its sum of digits gives 12101213021212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101213021213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7451485039 + ... + 7451486662.

It is an arithmetic number, because the mean of its divisors is an integer number (1043208019140).

Almost surely, 2^{12101213021212} is an apocalyptic number.

It is an amenable number.

12101213021212 is an abundant number, since it is smaller than the sum of its proper divisors (12935779438148).

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

12101213021212 is a wasteful number, since it uses less digits than its factorization.

12101213021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14902971741 (or 14902971739 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 12101213021212 its reverse (21212031210121), we get a palindrome (33313244231333).

The spelling of 12101213021212 in words is "twelve trillion, one hundred one billion, two hundred thirteen million, twenty-one thousand, two hundred twelve".