12002220110121 has 32 divisors (see below), whose sum is σ = 16184204725248. Its totient is φ = 7911158360640.

The previous prime is 12002220110117. The next prime is 12002220110143. The reversal of 12002220110121 is 12101102220021.

It is not a de Polignac number, because 12002220110121 - 2² = 12002220110117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12002220110121.

It is not an unprimeable number, because it can be changed into a prime (12002220110161) 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, 1189157751 + ... + 1189167843.

It is an arithmetic number, because the mean of its divisors is an integer number (505756397664).

Almost surely, 2^{12002220110121} is an apocalyptic number.

It is an amenable number.

12002220110121 is a deficient number, since it is larger than the sum of its proper divisors (4181984615127).

12002220110121 is a wasteful number, since it uses less digits than its factorization.

12002220110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17101.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12002220110121 its reverse (12101102220021), we get a palindrome (24103322330142).

The spelling of 12002220110121 in words is "twelve trillion, two billion, two hundred twenty million, one hundred ten thousand, one hundred twenty-one".