12020000121121 has 8 divisors (see below), whose sum is σ = 12521574560000. Its totient is φ = 11525540213520.

The previous prime is 12020000121071. The next prime is 12020000121149. The reversal of 12020000121121 is 12112100002021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12020000121121 - 2⁷ = 12020000120993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12020000121221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1778629371 + ... + 1778636128.

It is an arithmetic number, because the mean of its divisors is an integer number (1565196820000).

Almost surely, 2^{12020000121121} is an apocalyptic number.

It is an amenable number.

12020000121121 is a deficient number, since it is larger than the sum of its proper divisors (501574438879).

12020000121121 is a wasteful number, since it uses less digits than its factorization.

12020000121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3557265639.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12020000121121 its reverse (12112100002021), we get a palindrome (24132100123142).

The spelling of 12020000121121 in words is "twelve trillion, twenty billion, one hundred twenty-one thousand, one hundred twenty-one".