12120220011212 has 12 divisors (see below), whose sum is σ = 22132575672816. Its totient is φ = 5796626961840.

The previous prime is 12120220011197. The next prime is 12120220011271. The reversal of 12120220011212 is 21211002202121.

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, 65870760839 + ... + 65870761022.

It is an arithmetic number, because the mean of its divisors is an integer number (1844381306068).

Almost surely, 2^{12120220011212} is an apocalyptic number.

It is an amenable number.

12120220011212 is a deficient number, since it is larger than the sum of its proper divisors (10012355661604).

12120220011212 is a wasteful number, since it uses less digits than its factorization.

12120220011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131741521888 (or 131741521886 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12120220011212 its reverse (21211002202121), we get a palindrome (33331222213333).

The spelling of 12120220011212 in words is "twelve trillion, one hundred twenty billion, two hundred twenty million, eleven thousand, two hundred twelve".