22405898321 has 2 divisors, whose sum is σ = 22405898322. Its totient is φ = 22405898320.

The previous prime is 22405898309. The next prime is 22405898369. The reversal of 22405898321 is 12389850422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15700090000 + 6705808321 = 125300^2 + 81889^2 .

It is a cyclic number.

It is not a de Polignac number, because 22405898321 - 2¹⁴ = 22405881937 is a prime.

It is not a weakly prime, because it can be changed into another prime (22405898621) 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 as a sum of consecutive naturals, namely, 11202949160 + 11202949161.

It is an arithmetic number, because the mean of its divisors is an integer number (11202949161).

Almost surely, 2^22405898321 is an apocalyptic number.

It is an amenable number.

22405898321 is a deficient number, since it is larger than the sum of its proper divisors (1).

22405898321 is an equidigital number, since it uses as much as digits as its factorization.

22405898321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 22405898321 in words is "twenty-two billion, four hundred five million, eight hundred ninety-eight thousand, three hundred twenty-one".