20220075 has 18 divisors (see below), whose sum is σ = 36216804. Its totient is φ = 10783920.

The previous prime is 20220073. The next prime is 20220077. The reversal of 20220075 is 57002202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20220073) and next prime (20220077).

It is not a de Polignac number, because 20220075 - 2¹ = 20220073 is a prime.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (20220073) 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 in 17 ways as a sum of consecutive naturals, for example, 44709 + ... + 45158.

Almost surely, 2^20220075 is an apocalyptic number.

20220075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20220075 is a deficient number, since it is larger than the sum of its proper divisors (15996729).

20220075 is a wasteful number, since it uses less digits than its factorization.

20220075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89883 (or 89875 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 20220075 is about 4496.6737706887. The cubic root of 20220075 is about 272.4337577109.

Adding to 20220075 its reverse (57002202), we get a palindrome (77222277).

The spelling of 20220075 in words is "twenty million, two hundred twenty thousand, seventy-five".