12120000221121 has 16 divisors (see below), whose sum is σ = 17403533172480. Its totient is φ = 7458266275200.

The previous prime is 12120000221113. The next prime is 12120000221149. The reversal of 12120000221121 is 12112200002121.

12120000221121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12120000221121 - 2³ = 12120000221113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12120000221121.

It is not an unprimeable number, because it can be changed into a prime (12120000221921) 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, 2555956 + ... + 5547333.

It is an arithmetic number, because the mean of its divisors is an integer number (1087720823280).

Almost surely, 2^{12120000221121} is an apocalyptic number.

It is an amenable number.

12120000221121 is a deficient number, since it is larger than the sum of its proper divisors (5283532951359).

12120000221121 is a wasteful number, since it uses less digits than its factorization.

12120000221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8141656.

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

Adding to 12120000221121 its reverse (12112200002121), we get a palindrome (24232200223242).

The spelling of 12120000221121 in words is "twelve trillion, one hundred twenty billion, two hundred twenty-one thousand, one hundred twenty-one".