200121133417 has 2 divisors, whose sum is σ = 200121133418. Its totient is φ = 200121133416.

The previous prime is 200121133393. The next prime is 200121133441. The reversal of 200121133417 is 714331121002.

It is a balanced prime because it is at equal distance from previous prime (200121133393) and next prime (200121133441).

It can be written as a sum of positive squares in only one way, i.e., 192191052816 + 7930080601 = 438396^2 + 89051^2 .

It is a cyclic number.

It is not a de Polignac number, because 200121133417 - 2¹⁵ = 200121100649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200121133391 and 200121133400.

It is not a weakly prime, because it can be changed into another prime (200121133117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060566708 + 100060566709.

It is an arithmetic number, because the mean of its divisors is an integer number (100060566709).

Almost surely, 2^200121133417 is an apocalyptic number.

It is an amenable number.

200121133417 is a deficient number, since it is larger than the sum of its proper divisors (1).

200121133417 is an equidigital number, since it uses as much as digits as its factorization.

200121133417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 200121133417 its reverse (714331121002), we get a palindrome (914452254419).

The spelling of 200121133417 in words is "two hundred billion, one hundred twenty-one million, one hundred thirty-three thousand, four hundred seventeen".