12121101220012 has 48 divisors (see below), whose sum is σ = 21827018594304. Its totient is φ = 5886415080000.

The previous prime is 12121101220009. The next prime is 12121101220021. The reversal of 12121101220012 is 21002210112121.

12121101220012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89651262 + ... + 89786362.

It is an arithmetic number, because the mean of its divisors is an integer number (454729554048).

Almost surely, 2^{12121101220012} is an apocalyptic number.

It is an amenable number.

12121101220012 is a deficient number, since it is larger than the sum of its proper divisors (9705917374292).

12121101220012 is a wasteful number, since it uses less digits than its factorization.

12121101220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138070 (or 138068 counting only the distinct ones).

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

Adding to 12121101220012 its reverse (21002210112121), we get a palindrome (33123311332133).

The spelling of 12121101220012 in words is "twelve trillion, one hundred twenty-one billion, one hundred one million, two hundred twenty thousand, twelve".