20221304242 has 16 divisors (see below), whose sum is σ = 30770798400. Its totient is φ = 9964479280.

The previous prime is 20221304239. The next prime is 20221304303. The reversal of 20221304242 is 24240312202.

It is a super-2 number, since 2×20221304242² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370509 + ... + 421567.

It is an arithmetic number, because the mean of its divisors is an integer number (1923174900).

Almost surely, 2^20221304242 is an apocalyptic number.

20221304242 is a deficient number, since it is larger than the sum of its proper divisors (10549494158).

20221304242 is a wasteful number, since it uses less digits than its factorization.

20221304242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53921.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 20221304242 its reverse (24240312202), we get a palindrome (44461616444).

The spelling of 20221304242 in words is "twenty billion, two hundred twenty-one million, three hundred four thousand, two hundred forty-two".