22534204352321 has 2 divisors, whose sum is σ = 22534204352322. Its totient is φ = 22534204352320.

The previous prime is 22534204352311. The next prime is 22534204352323. The reversal of 22534204352321 is 12325340243522.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18645676708096 + 3888527644225 = 4318064^2 + 1971935^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22534204352321 is a prime.

Together with 22534204352323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22534204352323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11267102176160 + 11267102176161.

It is an arithmetic number, because the mean of its divisors is an integer number (11267102176161).

Almost surely, 2^{22534204352321} is an apocalyptic number.

It is an amenable number.

22534204352321 is a deficient number, since it is larger than the sum of its proper divisors (1).

22534204352321 is an equidigital number, since it uses as much as digits as its factorization.

22534204352321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 38.

Adding to 22534204352321 its reverse (12325340243522), we get a palindrome (34859544595843).

The spelling of 22534204352321 in words is "twenty-two trillion, five hundred thirty-four billion, two hundred four million, three hundred fifty-two thousand, three hundred twenty-one".