200212000021 has 4 divisors (see below), whose sum is σ = 218413090944. Its totient is φ = 182010909100.

The previous prime is 200211999997. The next prime is 200212000061. The reversal of 200212000021 is 120000212002.

200212000021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200212000021 - 2¹³ = 200211991829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200211999971 and 200212000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200212000061) 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 3 ways as a sum of consecutive naturals, for example, 9100545445 + ... + 9100545466.

It is an arithmetic number, because the mean of its divisors is an integer number (54603272736).

Almost surely, 2^200212000021 is an apocalyptic number.

It is an amenable number.

200212000021 is a deficient number, since it is larger than the sum of its proper divisors (18201090923).

200212000021 is a wasteful number, since it uses less digits than its factorization.

200212000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18201090922.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 200212000021 its reverse (120000212002), we get a palindrome (320212212023).

It can be divided in two parts, 2002 and 12000021, that multiplied together give a palindrome (24024042042).

The spelling of 200212000021 in words is "two hundred billion, two hundred twelve million, twenty-one", and thus it is an aban number.