200200110021221 has 2 divisors, whose sum is σ = 200200110021222. Its totient is φ = 200200110021220.

The previous prime is 200200110021187. The next prime is 200200110021257. The reversal of 200200110021221 is 122120011002002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195171684988996 + 5028425032225 = 13970386^2 + 2242415^2 .

It is a cyclic number.

It is not a de Polignac number, because 200200110021221 - 2²⁶ = 200200042912357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200200110021196 and 200200110021205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200200110021521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100100055010610 + 100100055010611.

It is an arithmetic number, because the mean of its divisors is an integer number (100100055010611).

Almost surely, 2^{200200110021221} is an apocalyptic number.

It is an amenable number.

200200110021221 is a deficient number, since it is larger than the sum of its proper divisors (1).

200200110021221 is an equidigital number, since it uses as much as digits as its factorization.

200200110021221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 200200110021221 its reverse (122120011002002), we get a palindrome (322320121023223).

The spelling of 200200110021221 in words is "two hundred trillion, two hundred billion, one hundred ten million, twenty-one thousand, two hundred twenty-one".