210201320121 has 8 divisors (see below), whose sum is σ = 301827536640. Its totient is φ = 129354658512.

The previous prime is 210201320059. The next prime is 210201320137. The reversal of 210201320121 is 121023102012.

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

It is not a de Polignac number, because 210201320121 - 2⁹ = 210201319609 is a prime.

It is a super-2 number, since 2×210201320121² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 210201320121.

It is not an unprimeable number, because it can be changed into a prime (210201330121) 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, 2694888681 + ... + 2694888758.

It is an arithmetic number, because the mean of its divisors is an integer number (37728442080).

Almost surely, 2^210201320121 is an apocalyptic number.

It is an amenable number.

210201320121 is a deficient number, since it is larger than the sum of its proper divisors (91626216519).

210201320121 is a wasteful number, since it uses less digits than its factorization.

210201320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5389777455.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 210201320121 its reverse (121023102012), we get a palindrome (331224422133).

The spelling of 210201320121 in words is "two hundred ten billion, two hundred one million, three hundred twenty thousand, one hundred twenty-one".