12121301331212 has 6 divisors (see below), whose sum is σ = 21212277329628. Its totient is φ = 6060650665604.

The previous prime is 12121301331193. The next prime is 12121301331241. The reversal of 12121301331212 is 21213310312121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1515162666398 + ... + 1515162666405.

It is an arithmetic number, because the mean of its divisors is an integer number (3535379554938).

Almost surely, 2^{12121301331212} is an apocalyptic number.

It is an amenable number.

12121301331212 is a deficient number, since it is larger than the sum of its proper divisors (9090975998416).

12121301331212 is a wasteful number, since it uses less digits than its factorization.

12121301331212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030325332807 (or 3030325332805 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12121301331212 its reverse (21213310312121), we get a palindrome (33334611643333).

The spelling of 12121301331212 in words is "twelve trillion, one hundred twenty-one billion, three hundred one million, three hundred thirty-one thousand, two hundred twelve".