2217300121 has 2 divisors, whose sum is σ = 2217300122. Its totient is φ = 2217300120.

The previous prime is 2217300083. The next prime is 2217300143. The reversal of 2217300121 is 1210037122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2158624521 + 58675600 = 46461^2 + 7660^2 .

It is a cyclic number.

It is not a de Polignac number, because 2217300121 - 2³¹ = 69816473 is a prime.

It is a super-2 number, since 2×2217300121² = 9832839653173229282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2217300161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108650060 + 1108650061.

It is an arithmetic number, because the mean of its divisors is an integer number (1108650061).

Almost surely, 2^2217300121 is an apocalyptic number.

It is an amenable number.

2217300121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2217300121 is an equidigital number, since it uses as much as digits as its factorization.

2217300121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 2217300121 is about 47088.2163709776. The cubic root of 2217300121 is about 1303.9916994293.

Adding to 2217300121 its reverse (1210037122), we get a palindrome (3427337243).

The spelling of 2217300121 in words is "two billion, two hundred seventeen million, three hundred thousand, one hundred twenty-one".