200210200100021 has 8 divisors (see below), whose sum is σ = 207707449971000. Its totient is φ = 192752513553600.

The previous prime is 200210200100017. The next prime is 200210200100093. The reversal of 200210200100021 is 120001002012002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 42923134980625 + 157287065119396 = 6551575^2 + 12541414^2 .

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

It is not a de Polignac number, because 200210200100021 - 2² = 200210200100017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200210200099975 and 200210200100011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200210200100321) 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, 9890820830 + ... + 9890841071.

It is an arithmetic number, because the mean of its divisors is an integer number (25963431246375).

Almost surely, 2^{200210200100021} is an apocalyptic number.

It is an amenable number.

200210200100021 is a deficient number, since it is larger than the sum of its proper divisors (7497249870979).

200210200100021 is a wasteful number, since it uses less digits than its factorization.

200210200100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19781662279.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 200210200100021 its reverse (120001002012002), we get a palindrome (320211202112023).

The spelling of 200210200100021 in words is "two hundred trillion, two hundred ten billion, two hundred million, one hundred thousand, twenty-one".