210011210020221 has 8 divisors (see below), whose sum is σ = 280109259587520. Its totient is φ = 139960316899872.

The previous prime is 210011210020207. The next prime is 210011210020307. The reversal of 210011210020221 is 122020012110012.

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

It is not a de Polignac number, because 210011210020221 - 2¹¹ = 210011210018173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210011210020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210011210020321) 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, 11789101345 + ... + 11789119158.

It is an arithmetic number, because the mean of its divisors is an integer number (35013657448440).

Almost surely, 2^{210011210020221} is an apocalyptic number.

It is an amenable number.

210011210020221 is a deficient number, since it is larger than the sum of its proper divisors (70098049567299).

210011210020221 is a wasteful number, since it uses less digits than its factorization.

210011210020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23578223475.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210011210020221 its reverse (122020012110012), we get a palindrome (332031222130233).

The spelling of 210011210020221 in words is "two hundred ten trillion, eleven billion, two hundred ten million, twenty thousand, two hundred twenty-one".