200111220211021 has 4 divisors (see below), whose sum is σ = 228698537384032. Its totient is φ = 171523903038012.

The previous prime is 200111220210959. The next prime is 200111220211037. The reversal of 200111220211021 is 120112022111002.

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 not a de Polignac number, because 200111220211021 - 2⁷ = 200111220210893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200111220210986 and 200111220211004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200111220211061) 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, 14293658586495 + ... + 14293658586508.

It is an arithmetic number, because the mean of its divisors is an integer number (57174634346008).

Almost surely, 2^{200111220211021} is an apocalyptic number.

It is an amenable number.

200111220211021 is a deficient number, since it is larger than the sum of its proper divisors (28587317173011).

200111220211021 is an equidigital number, since it uses as much as digits as its factorization.

200111220211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28587317173010.

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

Adding to 200111220211021 its reverse (120112022111002), we get a palindrome (320223242322023).

The spelling of 200111220211021 in words is "two hundred trillion, one hundred eleven billion, two hundred twenty million, two hundred eleven thousand, twenty-one".