20222420403 has 4 divisors (see below), whose sum is σ = 26963227208. Its totient is φ = 13481613600.

The previous prime is 20222420399. The next prime is 20222420419. The reversal of 20222420403 is 30402422202.

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

It is not a de Polignac number, because 20222420403 - 2² = 20222420399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20222420403.

It is not an unprimeable number, because it can be changed into a prime (20222420443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3370403398 + ... + 3370403403.

It is an arithmetic number, because the mean of its divisors is an integer number (6740806802).

Almost surely, 2^20222420403 is an apocalyptic number.

20222420403 is a deficient number, since it is larger than the sum of its proper divisors (6740806805).

20222420403 is an equidigital number, since it uses as much as digits as its factorization.

20222420403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6740806804.

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 20222420403 its reverse (30402422202), we get a palindrome (50624842605).

The spelling of 20222420403 in words is "twenty billion, two hundred twenty-two million, four hundred twenty thousand, four hundred three".