12222201122121 has 8 divisors (see below), whose sum is σ = 16296732597600. Its totient is φ = 8147901864032.

The previous prime is 12222201122093. The next prime is 12222201122123. The reversal of 12222201122121 is 12122110222221.

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

It is a cyclic number.

It is not a de Polignac number, because 12222201122121 - 2⁷ = 12222201121993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12222201122123) 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, 57931500 + ... + 58142093.

It is an arithmetic number, because the mean of its divisors is an integer number (2037091574700).

Almost surely, 2^{12222201122121} is an apocalyptic number.

It is an amenable number.

12222201122121 is a deficient number, since it is larger than the sum of its proper divisors (4074531475479).

12222201122121 is a wasteful number, since it uses less digits than its factorization.

12222201122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116108695.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12222201122121 its reverse (12122110222221), we get a palindrome (24344311344342).

The spelling of 12222201122121 in words is "twelve trillion, two hundred twenty-two billion, two hundred one million, one hundred twenty-two thousand, one hundred twenty-one".