210121212102202 has 8 divisors (see below), whose sum is σ = 315225309525696. Its totient is φ = 105046108926972.

The previous prime is 210121212102181. The next prime is 210121212102283. The reversal of 210121212102202 is 202201212121012.

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

It is a self number, because there is not a number n which added to its sum of digits gives 210121212102202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7248543948 + ... + 7248572935.

It is an arithmetic number, because the mean of its divisors is an integer number (39403163690712).

Almost surely, 2^{210121212102202} is an apocalyptic number.

210121212102202 is a deficient number, since it is larger than the sum of its proper divisors (105104097423494).

210121212102202 is a wasteful number, since it uses less digits than its factorization.

210121212102202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14497124132.

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

Adding to 210121212102202 its reverse (202201212121012), we get a palindrome (412322424223214).

The spelling of 210121212102202 in words is "two hundred ten trillion, one hundred twenty-one billion, two hundred twelve million, one hundred two thousand, two hundred two".