12001121220212 has 24 divisors (see below), whose sum is σ = 21079072140000. Its totient is φ = 5978535012576.

The previous prime is 12001121220199. The next prime is 12001121220227. The reversal of 12001121220212 is 21202212110021.

12001121220212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 7548539 + ... + 8999037.

It is an arithmetic number, because the mean of its divisors is an integer number (878294672500).

Almost surely, 2^{12001121220212} is an apocalyptic number.

It is an amenable number.

12001121220212 is a deficient number, since it is larger than the sum of its proper divisors (9077950919788).

12001121220212 is a wasteful number, since it uses less digits than its factorization.

12001121220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458095 (or 1458093 counting only the distinct ones).

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

Adding to 12001121220212 its reverse (21202212110021), we get a palindrome (33203333330233).

The spelling of 12001121220212 in words is "twelve trillion, one billion, one hundred twenty-one million, two hundred twenty thousand, two hundred twelve".