20224207 has 2 divisors, whose sum is σ = 20224208. Its totient is φ = 20224206.

The previous prime is 20224159. The next prime is 20224229. The reversal of 20224207 is 70242202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20224207 - 2¹⁵ = 20191439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20224247) 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, 10112103 + 10112104.

It is an arithmetic number, because the mean of its divisors is an integer number (10112104).

Almost surely, 2^20224207 is an apocalyptic number.

20224207 is a deficient number, since it is larger than the sum of its proper divisors (1).

20224207 is an equidigital number, since it uses as much as digits as its factorization.

20224207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 20224207 is about 4497.1331979384. The cubic root of 20224207 is about 272.4523138507.

Adding to 20224207 its reverse (70242202), we get a palindrome (90466409).

The spelling of 20224207 in words is "twenty million, two hundred twenty-four thousand, two hundred seven".