210010000221121 has 8 divisors (see below), whose sum is σ = 211203379955520. Its totient is φ = 208816844259408.

The previous prime is 210010000221031. The next prime is 210010000221143. The reversal of 210010000221121 is 121122000010012.

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 210010000221121 - 2²¹ = 210009998123969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210010000221181) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 54060666 + ... + 57815011.

It is an arithmetic number, because the mean of its divisors is an integer number (26400422494440).

Almost surely, 2^{210010000221121} is an apocalyptic number.

It is an amenable number.

210010000221121 is a deficient number, since it is larger than the sum of its proper divisors (1193379734399).

210010000221121 is a wasteful number, since it uses less digits than its factorization.

210010000221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111886343.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 210010000221121 its reverse (121122000010012), we get a palindrome (331132000231133).

The spelling of 210010000221121 in words is "two hundred ten trillion, ten billion, two hundred twenty-one thousand, one hundred twenty-one".