212200102102021 has 16 divisors (see below), whose sum is σ = 233848299442176. Its totient is φ = 190945851400000.

The previous prime is 212200102101917. The next prime is 212200102102039. The reversal of 212200102102021 is 120201201002212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212200102102021 - 2¹⁵ = 212200102069253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212200102101986 and 212200102102004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212200102102061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22689925 + ... + 30646906.

It is an arithmetic number, because the mean of its divisors is an integer number (14615518715136).

Almost surely, 2^{212200102102021} is an apocalyptic number.

It is an amenable number.

212200102102021 is a deficient number, since it is larger than the sum of its proper divisors (21648197340155).

212200102102021 is a wasteful number, since it uses less digits than its factorization.

212200102102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53340524.

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

Adding to 212200102102021 its reverse (120201201002212), we get a palindrome (332401303104233).

The spelling of 212200102102021 in words is "two hundred twelve trillion, two hundred billion, one hundred two million, one hundred two thousand, twenty-one".