210200212021 has 8 divisors (see below), whose sum is σ = 210449316024. Its totient is φ = 209951256000.

The previous prime is 210200211961. The next prime is 210200212043. The reversal of 210200212021 is 120212002012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 31874746225 + 178325465796 = 178535^2 + 422286^2 .

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 210200212021 - 2¹⁵ = 210200179253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210200211992 and 210200212010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210200212051) 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, 2946271 + ... + 3016771.

It is an arithmetic number, because the mean of its divisors is an integer number (26306164503).

Almost surely, 2^210200212021 is an apocalyptic number.

It is an amenable number.

210200212021 is a deficient number, since it is larger than the sum of its proper divisors (249104003).

210200212021 is a wasteful number, since it uses less digits than its factorization.

210200212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73991.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 210200212021 its reverse (120212002012), we get a palindrome (330412214033).

The spelling of 210200212021 in words is "two hundred ten billion, two hundred million, two hundred twelve thousand, twenty-one".