210200011221 has 8 divisors (see below), whose sum is σ = 289931050080. Its totient is φ = 135301156592.

The previous prime is 210200011207. The next prime is 210200011247. The reversal of 210200011221 is 122110002012.

210200011221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 210200011221 - 2¹⁹ = 210199486933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210200011197 and 210200011206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210200011271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1208045955 + ... + 1208046128.

It is an arithmetic number, because the mean of its divisors is an integer number (36241381260).

Almost surely, 2^210200011221 is an apocalyptic number.

It is an amenable number.

210200011221 is a deficient number, since it is larger than the sum of its proper divisors (79731038859).

210200011221 is a wasteful number, since it uses less digits than its factorization.

210200011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416092115.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210200011221 its reverse (122110002012), we get a palindrome (332310013233).

The spelling of 210200011221 in words is "two hundred ten billion, two hundred million, eleven thousand, two hundred twenty-one".