20220442424243 has 4 divisors (see below), whose sum is σ = 20304344675208. Its totient is φ = 20136540173280.

The previous prime is 20220442424239. The next prime is 20220442424293. The reversal of 20220442424243 is 34242424402202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20220442424243 - 2² = 20220442424239 is a prime.

It is a super-2 number, since 2×20220442424243² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20220442424293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41951125121 + ... + 41951125602.

It is an arithmetic number, because the mean of its divisors is an integer number (5076086168802).

Almost surely, 2^{20220442424243} is an apocalyptic number.

20220442424243 is a deficient number, since it is larger than the sum of its proper divisors (83902250965).

20220442424243 is an equidigital number, since it uses as much as digits as its factorization.

20220442424243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83902250964.

The product of its (nonzero) digits is 196608, while the sum is 35.

Adding to 20220442424243 its reverse (34242424402202), we get a palindrome (54462866826445).

The spelling of 20220442424243 in words is "twenty trillion, two hundred twenty billion, four hundred forty-two million, four hundred twenty-four thousand, two hundred forty-three".