12020100200121 has 16 divisors (see below), whose sum is σ = 17262984682944. Its totient is φ = 7395547470144.

The previous prime is 12020100200111. The next prime is 12020100200161. The reversal of 12020100200121 is 12100200102021.

It is not a de Polignac number, because 12020100200121 - 2⁵ = 12020100200089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12020100200097 and 12020100200106.

It is not an unprimeable number, because it can be changed into a prime (12020100200111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29739786 + ... + 30141251.

It is an arithmetic number, because the mean of its divisors is an integer number (1078936542684).

Almost surely, 2^{12020100200121} is an apocalyptic number.

It is an amenable number.

12020100200121 is a deficient number, since it is larger than the sum of its proper divisors (5242884482823).

12020100200121 is a wasteful number, since it uses less digits than its factorization.

12020100200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59886200.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12020100200121 its reverse (12100200102021), we get a palindrome (24120300302142).

The spelling of 12020100200121 in words is "twelve trillion, twenty billion, one hundred million, two hundred thousand, one hundred twenty-one".