121221022000201 has 16 divisors (see below), whose sum is σ = 130160272059648. Its totient is φ = 112482748224000.

The previous prime is 121221022000171. The next prime is 121221022000207. The reversal of 121221022000201 is 102000220122121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121221022000201 - 2³⁷ = 121083583046729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121221022000207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326429836 + ... + 326800978.

It is an arithmetic number, because the mean of its divisors is an integer number (8135017003728).

Almost surely, 2^{121221022000201} is an apocalyptic number.

It is an amenable number.

121221022000201 is a deficient number, since it is larger than the sum of its proper divisors (8939250059447).

121221022000201 is a wasteful number, since it uses less digits than its factorization.

121221022000201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641832.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121221022000201 its reverse (102000220122121), we get a palindrome (223221242122322).

The spelling of 121221022000201 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, twenty-two million, two hundred one", and thus it is an aban number.