23222104005521 has 2 divisors, whose sum is σ = 23222104005522. Its totient is φ = 23222104005520.

The previous prime is 23222104005511. The next prime is 23222104005559. The reversal of 23222104005521 is 12550040122232.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17525409104896 + 5696694900625 = 4186336^2 + 2386775^2 .

It is a cyclic number.

It is not a de Polignac number, because 23222104005521 - 2¹⁴ = 23222103989137 is a prime.

It is a super-2 number, since 2×23222104005521² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23222104005511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11611052002760 + 11611052002761.

It is an arithmetic number, because the mean of its divisors is an integer number (11611052002761).

Almost surely, 2^{23222104005521} is an apocalyptic number.

It is an amenable number.

23222104005521 is a deficient number, since it is larger than the sum of its proper divisors (1).

23222104005521 is an equidigital number, since it uses as much as digits as its factorization.

23222104005521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 23222104005521 its reverse (12550040122232), we get a palindrome (35772144127753).

The spelling of 23222104005521 in words is "twenty-three trillion, two hundred twenty-two billion, one hundred four million, five thousand, five hundred twenty-one".