12203815121 has 8 divisors (see below), whose sum is σ = 12847228320. Its totient is φ = 11560512672.

The previous prime is 12203815103. The next prime is 12203815147. The reversal of 12203815121 is 12151830221.

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 12203815121 - 2¹⁰ = 12203814097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12203815181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295106 + ... + 333908.

It is an arithmetic number, because the mean of its divisors is an integer number (1605903540).

Almost surely, 2^12203815121 is an apocalyptic number.

It is an amenable number.

12203815121 is a deficient number, since it is larger than the sum of its proper divisors (643413199).

12203815121 is a wasteful number, since it uses less digits than its factorization.

12203815121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55375.

The product of its (nonzero) digits is 960, while the sum is 26.

The spelling of 12203815121 in words is "twelve billion, two hundred three million, eight hundred fifteen thousand, one hundred twenty-one".