12002220001121 has 32 divisors (see below), whose sum is σ = 14085629376000. Its totient is φ = 10222390019520.

The previous prime is 12002220001073. The next prime is 12002220001139. The reversal of 12002220001121 is 12110002220021.

It is a de Polignac number, because none of the positive numbers 2^k-12002220001121 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12002220001096 and 12002220001105.

It is not an unprimeable number, because it can be changed into a prime (12002220001151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76221356 + ... + 76378658.

It is an arithmetic number, because the mean of its divisors is an integer number (440175918000).

Almost surely, 2^{12002220001121} is an apocalyptic number.

It is an amenable number.

12002220001121 is a deficient number, since it is larger than the sum of its proper divisors (2083409374879).

12002220001121 is a wasteful number, since it uses less digits than its factorization.

12002220001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158734 (or 158720 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12002220001121 its reverse (12110002220021), we get a palindrome (24112222221142).

The spelling of 12002220001121 in words is "twelve trillion, two billion, two hundred twenty million, one thousand, one hundred twenty-one".