24222121321 has 16 divisors (see below), whose sum is σ = 25557529536. Its totient is φ = 22932576576.

The previous prime is 24222121309. The next prime is 24222121331. The reversal of 24222121321 is 12312122242.

It is a cyclic number.

It is not a de Polignac number, because 24222121321 - 2⁵ = 24222121289 is a prime.

It is a super-2 number, since 2×24222121321² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 24222121292 and 24222121301.

It is not an unprimeable number, because it can be changed into a prime (24222121331) 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 15 ways as a sum of consecutive naturals, for example, 125131 + ... + 253183.

It is an arithmetic number, because the mean of its divisors is an integer number (1597345596).

Almost surely, 2^24222121321 is an apocalyptic number.

It is an amenable number.

24222121321 is a deficient number, since it is larger than the sum of its proper divisors (1335408215).

24222121321 is a wasteful number, since it uses less digits than its factorization.

24222121321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128232.

The product of its digits is 768, while the sum is 22.

Adding to 24222121321 its reverse (12312122242), we get a palindrome (36534243563).

The spelling of 24222121321 in words is "twenty-four billion, two hundred twenty-two million, one hundred twenty-one thousand, three hundred twenty-one".