200211000211021 has 4 divisors (see below), whose sum is σ = 200217757505500. Its totient is φ = 200204242916544.

The previous prime is 200211000210997. The next prime is 200211000211051. The reversal of 200211000211021 is 120112000112002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 134518127258025 + 65692872952996 = 11598195^2 + 8105114^2 .

It is a cyclic number.

It is not a de Polignac number, because 200211000211021 - 2²¹ = 200210998113869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200211000210992 and 200211000211010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200211000211051) 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, 3378602796 + ... + 3378662053.

It is an arithmetic number, because the mean of its divisors is an integer number (50054439376375).

Almost surely, 2^{200211000211021} is an apocalyptic number.

It is an amenable number.

200211000211021 is a deficient number, since it is larger than the sum of its proper divisors (6757294479).

200211000211021 is an equidigital number, since it uses as much as digits as its factorization.

200211000211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6757294478.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 200211000211021 its reverse (120112000112002), we get a palindrome (320323000323023).

The spelling of 200211000211021 in words is "two hundred trillion, two hundred eleven billion, two hundred eleven thousand, twenty-one".