12021301331121 has 32 divisors (see below), whose sum is σ = 17170471296000. Its totient is φ = 7458277151808.

The previous prime is 12021301331113. The next prime is 12021301331147. The reversal of 12021301331121 is 12113310312021.

It is not a de Polignac number, because 12021301331121 - 2³ = 12021301331113 is a prime.

It is a super-2 number, since 2×12021301331121² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12021301331101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3315660 + ... + 5919138.

It is an arithmetic number, because the mean of its divisors is an integer number (536577228000).

Almost surely, 2^{12021301331121} is an apocalyptic number.

It is an amenable number.

12021301331121 is a deficient number, since it is larger than the sum of its proper divisors (5149169964879).

12021301331121 is a wasteful number, since it uses less digits than its factorization.

12021301331121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604933.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 12021301331121 its reverse (12113310312021), we get a palindrome (24134611643142).

The spelling of 12021301331121 in words is "twelve trillion, twenty-one billion, three hundred one million, three hundred thirty-one thousand, one hundred twenty-one".