121000002100201 has 4 divisors (see below), whose sum is σ = 138285716685952. Its totient is φ = 103714287514452.

The previous prime is 121000002100199. The next prime is 121000002100207. The reversal of 121000002100201 is 102001200000121.

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 121000002100201 - 2¹ = 121000002100199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121000002100207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8642857292865 + ... + 8642857292878.

It is an arithmetic number, because the mean of its divisors is an integer number (34571429171488).

Almost surely, 2^{121000002100201} is an apocalyptic number.

It is an amenable number.

121000002100201 is a deficient number, since it is larger than the sum of its proper divisors (17285714585751).

121000002100201 is an equidigital number, since it uses as much as digits as its factorization.

121000002100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17285714585750.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 121000002100201 its reverse (102001200000121), we get a palindrome (223001202100322).

The spelling of 121000002100201 in words is "one hundred twenty-one trillion, two million, one hundred thousand, two hundred one".