22144200340321 has 2 divisors, whose sum is σ = 22144200340322. Its totient is φ = 22144200340320.

The previous prime is 22144200340279. The next prime is 22144200340343. The reversal of 22144200340321 is 12304300244122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13014496368721 + 9129703971600 = 3607561^2 + 3021540^2 .

It is a cyclic number.

It is not a de Polignac number, because 22144200340321 - 2³¹ = 22142052856673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22144200340321.

It is not a weakly prime, because it can be changed into another prime (22144200341321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11072100170160 + 11072100170161.

It is an arithmetic number, because the mean of its divisors is an integer number (11072100170161).

Almost surely, 2^{22144200340321} is an apocalyptic number.

It is an amenable number.

22144200340321 is a deficient number, since it is larger than the sum of its proper divisors (1).

22144200340321 is an equidigital number, since it uses as much as digits as its factorization.

22144200340321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 22144200340321 its reverse (12304300244122), we get a palindrome (34448500584443).

The spelling of 22144200340321 in words is "twenty-two trillion, one hundred forty-four billion, two hundred million, three hundred forty thousand, three hundred twenty-one".