224447775004181 has 2 divisors, whose sum is σ = 224447775004182. Its totient is φ = 224447775004180.

The previous prime is 224447775004049. The next prime is 224447775004183. The reversal of 224447775004181 is 181400577744422.

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., 190958984701681 + 33488790302500 = 13818791^2 + 5786950^2 .

It is a cyclic number.

It is not a de Polignac number, because 224447775004181 - 2¹⁴ = 224447774987797 is a prime.

It is a super-2 number, since 2×224447775004181² (a number of 30 digits) contains 22 as substring.

Together with 224447775004183, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224447775004183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112223887502090 + 112223887502091.

It is an arithmetic number, because the mean of its divisors is an integer number (112223887502091).

Almost surely, 2^{224447775004181} is an apocalyptic number.

It is an amenable number.

224447775004181 is a deficient number, since it is larger than the sum of its proper divisors (1).

224447775004181 is an equidigital number, since it uses as much as digits as its factorization.

224447775004181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14049280, while the sum is 56.

The spelling of 224447775004181 in words is "two hundred twenty-four trillion, four hundred forty-seven billion, seven hundred seventy-five million, four thousand, one hundred eighty-one".