20024223121 has 8 divisors (see below), whose sum is σ = 23094779840. Its totient is φ = 17006154768.

The previous prime is 20024223113. The next prime is 20024223157. The reversal of 20024223121 is 12132242002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20024223121 - 2³ = 20024223113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20024263121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13121271 + ... + 13122796.

It is an arithmetic number, because the mean of its divisors is an integer number (2886847480).

Almost surely, 2^20024223121 is an apocalyptic number.

It is an amenable number.

20024223121 is a deficient number, since it is larger than the sum of its proper divisors (3070556719).

20024223121 is a wasteful number, since it uses less digits than its factorization.

20024223121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26244183.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20024223121 its reverse (12132242002), we get a palindrome (32156465123).

The spelling of 20024223121 in words is "twenty billion, twenty-four million, two hundred twenty-three thousand, one hundred twenty-one".