210202000210121 has 4 divisors (see below), whose sum is σ = 211269015439812. Its totient is φ = 209134984980432.

The previous prime is 210202000210079. The next prime is 210202000210133. The reversal of 210202000210121 is 121012000202012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 169555191224896 + 40646808985225 = 13021336^2 + 6375485^2 .

It is a cyclic number.

It is not a de Polignac number, because 210202000210121 - 2¹⁴ = 210202000193737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210202000210096 and 210202000210105.

It is not an unprimeable number, because it can be changed into a prime (210202000210171) 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 3 ways as a sum of consecutive naturals, for example, 533507614550 + ... + 533507614943.

It is an arithmetic number, because the mean of its divisors is an integer number (52817253859953).

Almost surely, 2^{210202000210121} is an apocalyptic number.

It is an amenable number.

210202000210121 is a deficient number, since it is larger than the sum of its proper divisors (1067015229691).

210202000210121 is a wasteful number, since it uses less digits than its factorization.

210202000210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067015229690.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210202000210121 its reverse (121012000202012), we get a palindrome (331214000412133).

The spelling of 210202000210121 in words is "two hundred ten trillion, two hundred two billion, two hundred ten thousand, one hundred twenty-one".