210200212102021 has 16 divisors (see below), whose sum is σ = 219956798361600. Its totient is φ = 200648536583040.

The previous prime is 210200212101949. The next prime is 210200212102051. The reversal of 210200212102021 is 120201212002012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 210200212102021 - 2²⁹ = 210199675231109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210200212101986 and 210200212102004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210200212102051) 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, 156956821 + ... + 158290378.

It is an arithmetic number, because the mean of its divisors is an integer number (13747299897600).

Almost surely, 2^{210200212102021} is an apocalyptic number.

It is an amenable number.

210200212102021 is a deficient number, since it is larger than the sum of its proper divisors (9756586259579).

210200212102021 is a wasteful number, since it uses less digits than its factorization.

210200212102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315247524.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210200212102021 its reverse (120201212002012), we get a palindrome (330401424104033).

The spelling of 210200212102021 in words is "two hundred ten trillion, two hundred billion, two hundred twelve million, one hundred two thousand, twenty-one".