210202212102121 has 8 divisors (see below), whose sum is σ = 212568117212160. Its totient is φ = 207836397714528.

The previous prime is 210202212102107. The next prime is 210202212102133. The reversal of 210202212102121 is 121201212202012.

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 210202212102121 - 2⁴⁷ = 69464723746793 is a prime.

It is a super-3 number, since 3×210202212102121³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210202212102161) 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, 18015201 + ... + 27293806.

It is an arithmetic number, because the mean of its divisors is an integer number (26571014651520).

Almost surely, 2^{210202212102121} is an apocalyptic number.

It is an amenable number.

210202212102121 is a deficient number, since it is larger than the sum of its proper divisors (2365905110039).

210202212102121 is an equidigital number, since it uses as much as digits as its factorization.

210202212102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45361223.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 210202212102121 its reverse (121201212202012), we get a palindrome (331403424304133).

The spelling of 210202212102121 in words is "two hundred ten trillion, two hundred two billion, two hundred twelve million, one hundred two thousand, one hundred twenty-one".