20220307 has 2 divisors, whose sum is σ = 20220308. Its totient is φ = 20220306.

The previous prime is 20220283. The next prime is 20220311. The reversal of 20220307 is 70302202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20220307 - 2¹¹ = 20218259 is a prime.

It is not a weakly prime, because it can be changed into another prime (20220007) 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, 10110153 + 10110154.

It is an arithmetic number, because the mean of its divisors is an integer number (10110154).

Almost surely, 2^20220307 is an apocalyptic number.

20220307 is a deficient number, since it is larger than the sum of its proper divisors (1).

20220307 is an equidigital number, since it uses as much as digits as its factorization.

20220307 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 16.

The square root of 20220307 is about 4496.6995674606. The cubic root of 20220307 is about 272.4347996522.

Adding to 20220307 its reverse (70302202), we get a palindrome (90522509).

It can be divided in two parts, 202 and 20307, that multiplied together give a palindrome (4102014).

The spelling of 20220307 in words is "twenty million, two hundred twenty thousand, three hundred seven".