121000000200121 has 8 divisors (see below), whose sum is σ = 140629540184640. Its totient is φ = 101956416633168.

The previous prime is 121000000200089. The next prime is 121000000200127. The reversal of 121000000200121 is 121002000000121.

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 121000000200121 - 2⁵ = 121000000200089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121000000200098 and 121000000200107.

It is not an unprimeable number, because it can be changed into a prime (121000000200127) 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, 146489103946 + ... + 146489104771.

It is an arithmetic number, because the mean of its divisors is an integer number (17578692523080).

Almost surely, 2^{121000000200121} is an apocalyptic number.

It is an amenable number.

121000000200121 is a deficient number, since it is larger than the sum of its proper divisors (19629539984519).

121000000200121 is an equidigital number, since it uses as much as digits as its factorization.

121000000200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292978208783.

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

Adding to 121000000200121 its reverse (121002000000121), we get a palindrome (242002000200242).

The spelling of 121000000200121 in words is "one hundred twenty-one trillion, two hundred thousand, one hundred twenty-one".