2221200017 has 2 divisors, whose sum is σ = 2221200018. Its totient is φ = 2221200016.

The previous prime is 2221200011. The next prime is 2221200031. The reversal of 2221200017 is 7100021222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1283860561 + 937339456 = 35831^2 + 30616^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221200017 - 2⁴ = 2221200001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2221199968 and 2221200004.

It is not a weakly prime, because it can be changed into another prime (2221200011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110600008 + 1110600009.

It is an arithmetic number, because the mean of its divisors is an integer number (1110600009).

Almost surely, 2^2221200017 is an apocalyptic number.

It is an amenable number.

2221200017 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221200017 is an equidigital number, since it uses as much as digits as its factorization.

2221200017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 2221200017 is about 47129.6087083269. The cubic root of 2221200017 is about 1304.7557597945.

Adding to 2221200017 its reverse (7100021222), we get a palindrome (9321221239).

The spelling of 2221200017 in words is "two billion, two hundred twenty-one million, two hundred thousand, seventeen".