200211111020221 has 24 divisors (see below), whose sum is σ = 237528132774840. Its totient is φ = 168204736207872.

The previous prime is 200211111020197. The next prime is 200211111020267. The reversal of 200211111020221 is 122020111112002.

It can be written as a sum of positive squares in 4 ways, for example, as 88041533472025 + 112169577548196 = 9383045^2 + 10591014^2 .

It is not a de Polignac number, because 200211111020221 - 2⁷ = 200211111020093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200211111020195 and 200211111020204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200211111920221) 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 23 ways as a sum of consecutive naturals, for example, 35582416 + ... + 40823161.

It is an arithmetic number, because the mean of its divisors is an integer number (9897005532285).

Almost surely, 2^{200211111020221} is an apocalyptic number.

It is an amenable number.

200211111020221 is a deficient number, since it is larger than the sum of its proper divisors (37317021754619).

200211111020221 is a wasteful number, since it uses less digits than its factorization.

200211111020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76406653 (or 76406646 counting only the distinct ones).

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

Adding to 200211111020221 its reverse (122020111112002), we get a palindrome (322231222132223).

The spelling of 200211111020221 in words is "two hundred trillion, two hundred eleven billion, one hundred eleven million, twenty thousand, two hundred twenty-one".