210220200100221 has 16 divisors (see below), whose sum is σ = 292774031621760. Its totient is φ = 134000422153920.

The previous prime is 210220200100219. The next prime is 210220200100247. The reversal of 210220200100221 is 122001002022012.

It is not a de Polignac number, because 210220200100221 - 2¹ = 210220200100219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210220200100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210220200100321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11729719870 + ... + 11729737791.

It is an arithmetic number, because the mean of its divisors is an integer number (18298376976360).

Almost surely, 2^{210220200100221} is an apocalyptic number.

It is an amenable number.

210220200100221 is a deficient number, since it is larger than the sum of its proper divisors (82553831521539).

210220200100221 is a wasteful number, since it uses less digits than its factorization.

210220200100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23459457796.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 210220200100221 its reverse (122001002022012), we get a palindrome (332221202122233).

The spelling of 210220200100221 in words is "two hundred ten trillion, two hundred twenty billion, two hundred million, one hundred thousand, two hundred twenty-one".