20221123424 has 24 divisors (see below), whose sum is σ = 41094543168. Its totient is φ = 9784414080.

The previous prime is 20221123423. The next prime is 20221123441. The reversal of 20221123424 is 42432112202.

It is a self number, because there is not a number n which added to its sum of digits gives 20221123424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221123423) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10191107 + ... + 10193090.

It is an arithmetic number, because the mean of its divisors is an integer number (1712272632).

Almost surely, 2^20221123424 is an apocalyptic number.

It is an amenable number.

20221123424 is an abundant number, since it is smaller than the sum of its proper divisors (20873419744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20221123424 is a wasteful number, since it uses less digits than its factorization.

20221123424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20384238 (or 20384230 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20221123424 its reverse (42432112202), we get a palindrome (62653235626).

The spelling of 20221123424 in words is "twenty billion, two hundred twenty-one million, one hundred twenty-three thousand, four hundred twenty-four".