22344004221437 has 2 divisors, whose sum is σ = 22344004221438. Its totient is φ = 22344004221436.

The previous prime is 22344004221391. The next prime is 22344004221491. The reversal of 22344004221437 is 73412240044322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22316308272196 + 27695949241 = 4724014^2 + 166421^2 .

It is a cyclic number.

It is not a de Polignac number, because 22344004221437 - 2²⁰ = 22344003172861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22344004221437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22344004221037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11172002110718 + 11172002110719.

It is an arithmetic number, because the mean of its divisors is an integer number (11172002110719).

Almost surely, 2^{22344004221437} is an apocalyptic number.

It is an amenable number.

22344004221437 is a deficient number, since it is larger than the sum of its proper divisors (1).

22344004221437 is an equidigital number, since it uses as much as digits as its factorization.

22344004221437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 38.

Adding to 22344004221437 its reverse (73412240044322), we get a palindrome (95756244265759).

The spelling of 22344004221437 in words is "twenty-two trillion, three hundred forty-four billion, four million, two hundred twenty-one thousand, four hundred thirty-seven".