200021221021111 has 8 divisors (see below), whose sum is σ = 228871429884320. Its totient is φ = 171239949337248.

The previous prime is 200021221021109. The next prime is 200021221021187. The reversal of 200021221021111 is 111120122120002.

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

It is a cyclic number.

It is not a de Polignac number, because 200021221021111 - 2¹ = 200021221021109 is a prime.

It is a super-2 number, since 2×200021221021111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200021221021511) 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, 17234288616 + ... + 17234300221.

It is an arithmetic number, because the mean of its divisors is an integer number (28608928735540).

Almost surely, 2^{200021221021111} is an apocalyptic number.

200021221021111 is a deficient number, since it is larger than the sum of its proper divisors (28850208863209).

200021221021111 is an equidigital number, since it uses as much as digits as its factorization.

200021221021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34468589673.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 200021221021111 its reverse (111120122120002), we get a palindrome (311141343141113).

The spelling of 200021221021111 in words is "two hundred trillion, twenty-one billion, two hundred twenty-one million, twenty-one thousand, one hundred eleven".