200200212111021 has 4 divisors (see below), whose sum is σ = 266933616148032. Its totient is φ = 133466808074012.

The previous prime is 200200212111007. The next prime is 200200212111023. The reversal of 200200212111021 is 120111212002002.

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 200200212111021 - 2⁴¹ = 198001188855469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200200212111023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33366702018501 + ... + 33366702018506.

It is an arithmetic number, because the mean of its divisors is an integer number (66733404037008).

Almost surely, 2^{200200212111021} is an apocalyptic number.

It is an amenable number.

200200212111021 is a deficient number, since it is larger than the sum of its proper divisors (66733404037011).

200200212111021 is an equidigital number, since it uses as much as digits as its factorization.

200200212111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66733404037010.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 200200212111021 its reverse (120111212002002), we get a palindrome (320311424113023).

The spelling of 200200212111021 in words is "two hundred trillion, two hundred billion, two hundred twelve million, one hundred eleven thousand, twenty-one".