204220007 has 2 divisors, whose sum is σ = 204220008. Its totient is φ = 204220006.

The previous prime is 204219991. The next prime is 204220019. The reversal of 204220007 is 700022402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204220007 - 2⁴ = 204219991 is a prime.

It is a super-2 number, since 2×204220007² = 83411622518160098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204220097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102110003 + 102110004.

It is an arithmetic number, because the mean of its divisors is an integer number (102110004).

Almost surely, 2^204220007 is an apocalyptic number.

204220007 is a deficient number, since it is larger than the sum of its proper divisors (1).

204220007 is an equidigital number, since it uses as much as digits as its factorization.

204220007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 204220007 is about 14290.5565671880. The cubic root of 204220007 is about 588.8880781379. Note that the first 3 decimals are identical.

Adding to 204220007 its reverse (700022402), we get a palindrome (904242409).

The spelling of 204220007 in words is "two hundred four million, two hundred twenty thousand, seven".