12221043100121 has 8 divisors (see below), whose sum is σ = 12333250512000. Its totient is φ = 12108837283920.

The previous prime is 12221043100099. The next prime is 12221043100151. The reversal of 12221043100121 is 12100134012221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12221043100121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12221043100093 and 12221043100102.

It is not an unprimeable number, because it can be changed into a prime (12221043100151) 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, 19544480 + ... + 20160078.

It is an arithmetic number, because the mean of its divisors is an integer number (1541656314000).

Almost surely, 2^{12221043100121} is an apocalyptic number.

It is an amenable number.

12221043100121 is a deficient number, since it is larger than the sum of its proper divisors (112207411879).

12221043100121 is a wasteful number, since it uses less digits than its factorization.

12221043100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797839.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12221043100121 its reverse (12100134012221), we get a palindrome (24321177112342).

The spelling of 12221043100121 in words is "twelve trillion, two hundred twenty-one billion, forty-three million, one hundred thousand, one hundred twenty-one".