22344004401421 has 2 divisors, whose sum is σ = 22344004401422. Its totient is φ = 22344004401420.

The previous prime is 22344004401391. The next prime is 22344004401463. The reversal of 22344004401421 is 12410440044322.

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., 16473492150025 + 5870512251396 = 4058755^2 + 2422914^2 .

It is a cyclic number.

It is not a de Polignac number, because 22344004401421 - 2⁹ = 22344004400909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22344004405421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11172002200710 + 11172002200711.

It is an arithmetic number, because the mean of its divisors is an integer number (11172002200711).

Almost surely, 2^{22344004401421} is an apocalyptic number.

It is an amenable number.

22344004401421 is a deficient number, since it is larger than the sum of its proper divisors (1).

22344004401421 is an equidigital number, since it uses as much as digits as its factorization.

22344004401421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 22344004401421 its reverse (12410440044322), we get a palindrome (34754444445743).

The spelling of 22344004401421 in words is "twenty-two trillion, three hundred forty-four billion, four million, four hundred one thousand, four hundred twenty-one".