210120121220201 has 8 divisors (see below), whose sum is σ = 210287000985600. Its totient is φ = 209953245512160.

The previous prime is 210120121220179. The next prime is 210120121220297. The reversal of 210120121220201 is 102022121021012.

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 210120121220201 - 2²⁶ = 210120054111337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210120121220201.

It is not an unprimeable number, because it can be changed into a prime (210120121220101) 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 7 ways as a sum of consecutive naturals, for example, 107179541 + ... + 109122381.

It is an arithmetic number, because the mean of its divisors is an integer number (26285875123200).

Almost surely, 2^{210120121220201} is an apocalyptic number.

It is an amenable number.

210120121220201 is a deficient number, since it is larger than the sum of its proper divisors (166879765399).

210120121220201 is a wasteful number, since it uses less digits than its factorization.

210120121220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028679.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 210120121220201 its reverse (102022121021012), we get a palindrome (312142242241213).

The spelling of 210120121220201 in words is "two hundred ten trillion, one hundred twenty billion, one hundred twenty-one million, two hundred twenty thousand, two hundred one".