210201110121121 has 8 divisors (see below), whose sum is σ = 244301532344640. Its totient is φ = 177118610949168.

The previous prime is 210201110121071. The next prime is 210201110121151. The reversal of 210201110121121 is 121121011102012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 210201110121121 - 2¹⁹ = 210201109596833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210201110121095 and 210201110121104.

It is not an unprimeable number, because it can be changed into a prime (210201110121151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254480762446 + ... + 254480763271.

It is an arithmetic number, because the mean of its divisors is an integer number (30537691543080).

Almost surely, 2^{210201110121121} is an apocalyptic number.

It is an amenable number.

210201110121121 is a deficient number, since it is larger than the sum of its proper divisors (34100422223519).

210201110121121 is an equidigital number, since it uses as much as digits as its factorization.

210201110121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508961525783.

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

Adding to 210201110121121 its reverse (121121011102012), we get a palindrome (331322121223133).

The spelling of 210201110121121 in words is "two hundred ten trillion, two hundred one billion, one hundred ten million, one hundred twenty-one thousand, one hundred twenty-one".