210002121210221 has 8 divisors (see below), whose sum is σ = 214547981114304. Its totient is φ = 205497776008800.

The previous prime is 210002121210127. The next prime is 210002121210311. The reversal of 210002121210221 is 122012121200012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210002121210221 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 210002121210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210002121215221) 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, 10378665440 + ... + 10378685673.

It is an arithmetic number, because the mean of its divisors is an integer number (26818497639288).

Almost surely, 2^{210002121210221} is an apocalyptic number.

It is an amenable number.

210002121210221 is a deficient number, since it is larger than the sum of its proper divisors (4545859904083).

210002121210221 is a wasteful number, since it uses less digits than its factorization.

210002121210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20757351331.

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

Adding to 210002121210221 its reverse (122012121200012), we get a palindrome (332014242410233).

The spelling of 210002121210221 in words is "two hundred ten trillion, two billion, one hundred twenty-one million, two hundred ten thousand, two hundred twenty-one".