12312201123121 has 8 divisors (see below), whose sum is σ = 12315563395200. Its totient is φ = 12308839084080.

The previous prime is 12312201123091. The next prime is 12312201123133. The reversal of 12312201123121 is 12132110221321.

It is a happy number.

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 12312201123121 - 2⁹ = 12312201122609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12312201123092 and 12312201123101.

It is not an unprimeable number, because it can be changed into a prime (12312201123421) 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 7 ways as a sum of consecutive naturals, for example, 169859875 + ... + 169932343.

It is an arithmetic number, because the mean of its divisors is an integer number (1539445424400).

Almost surely, 2^{12312201123121} is an apocalyptic number.

It is an amenable number.

12312201123121 is a deficient number, since it is larger than the sum of its proper divisors (3362272079).

12312201123121 is an equidigital number, since it uses as much as digits as its factorization.

12312201123121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116519.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 12312201123121 its reverse (12132110221321), we get a palindrome (24444311344442).

The spelling of 12312201123121 in words is "twelve trillion, three hundred twelve billion, two hundred one million, one hundred twenty-three thousand, one hundred twenty-one".