121204304342201 has 4 divisors (see below), whose sum is σ = 121240822665600. Its totient is φ = 121167786018804.

The previous prime is 121204304342161. The next prime is 121204304342203. The reversal of 121204304342201 is 102243403402121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121204304342201 - 2²² = 121204300147897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121204304342203) 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 3 ways as a sum of consecutive naturals, for example, 18259156721 + ... + 18259163358.

It is an arithmetic number, because the mean of its divisors is an integer number (30310205666400).

Almost surely, 2^{121204304342201} is an apocalyptic number.

It is an amenable number.

121204304342201 is a deficient number, since it is larger than the sum of its proper divisors (36518323399).

121204304342201 is an equidigital number, since it uses as much as digits as its factorization.

121204304342201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36518323398.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 121204304342201 its reverse (102243403402121), we get a palindrome (223447707744322).

The spelling of 121204304342201 in words is "one hundred twenty-one trillion, two hundred four billion, three hundred four million, three hundred forty-two thousand, two hundred one".