210002001212321 has 16 divisors (see below), whose sum is σ = 211438591185600. Its totient is φ = 208568378523648.

The previous prime is 210002001212317. The next prime is 210002001212369. The reversal of 210002001212321 is 123212100200012.

It is a cyclic number.

It is not a de Polignac number, because 210002001212321 - 2² = 210002001212317 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 210002001212321.

It is not an unprimeable number, because it can be changed into a prime (210002001212371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2106014561 + ... + 2106114273.

It is an arithmetic number, because the mean of its divisors is an integer number (13214911949100).

Almost surely, 2^{210002001212321} is an apocalyptic number.

It is an amenable number.

210002001212321 is a deficient number, since it is larger than the sum of its proper divisors (1436589973279).

210002001212321 is a wasteful number, since it uses less digits than its factorization.

210002001212321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114448.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 210002001212321 its reverse (123212100200012), we get a palindrome (333214101412333).

The spelling of 210002001212321 in words is "two hundred ten trillion, two billion, one million, two hundred twelve thousand, three hundred twenty-one".