121020200120201 has 16 divisors (see below), whose sum is σ = 121583718144000. Its totient is φ = 120457173849600.

The previous prime is 121020200120089. The next prime is 121020200120221. The reversal of 121020200120201 is 102021002020121.

It is a cyclic number.

It is not a de Polignac number, because 121020200120201 - 2²² = 121020195925897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121020200120221) 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 15 ways as a sum of consecutive naturals, for example, 5245543496 + ... + 5245566566.

It is an arithmetic number, because the mean of its divisors is an integer number (7598982384000).

Almost surely, 2^{121020200120201} is an apocalyptic number.

It is an amenable number.

121020200120201 is a deficient number, since it is larger than the sum of its proper divisors (563518023799).

121020200120201 is a wasteful number, since it uses less digits than its factorization.

121020200120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32680.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121020200120201 its reverse (102021002020121), we get a palindrome (223041202140322).

The spelling of 121020200120201 in words is "one hundred twenty-one trillion, twenty billion, two hundred million, one hundred twenty thousand, two hundred one".