200110122221 has 2 divisors, whose sum is σ = 200110122222. Its totient is φ = 200110122220.

The previous prime is 200110122193. The next prime is 200110122253. The reversal of 200110122221 is 122221011002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119518861225 + 80591260996 = 345715^2 + 283886^2 .

It is a cyclic number.

It is not a de Polignac number, because 200110122221 - 2³⁰ = 199036380397 is a prime.

It is a super-2 number, since 2×200110122221² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200110122196 and 200110122205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200110122521) 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 as a sum of consecutive naturals, namely, 100055061110 + 100055061111.

It is an arithmetic number, because the mean of its divisors is an integer number (100055061111).

Almost surely, 2^200110122221 is an apocalyptic number.

It is an amenable number.

200110122221 is a deficient number, since it is larger than the sum of its proper divisors (1).

200110122221 is an equidigital number, since it uses as much as digits as its factorization.

200110122221 is an odious number, because the sum of its binary digits is odd.

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

Adding to 200110122221 its reverse (122221011002), we get a palindrome (322331133223).

The spelling of 200110122221 in words is "two hundred billion, one hundred ten million, one hundred twenty-two thousand, two hundred twenty-one".