224244021361 has 2 divisors, whose sum is σ = 224244021362. Its totient is φ = 224244021360.

The previous prime is 224244021341. The next prime is 224244021409. The reversal of 224244021361 is 163120442422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155413350625 + 68830670736 = 394225^2 + 262356^2 .

It is a cyclic number.

It is not a de Polignac number, because 224244021361 - 2²¹ = 224241924209 is a prime.

It is a super-2 number, since 2×224244021361² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (224244021341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112122010680 + 112122010681.

It is an arithmetic number, because the mean of its divisors is an integer number (112122010681).

Almost surely, 2^224244021361 is an apocalyptic number.

It is an amenable number.

224244021361 is a deficient number, since it is larger than the sum of its proper divisors (1).

224244021361 is an equidigital number, since it uses as much as digits as its factorization.

224244021361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 224244021361 its reverse (163120442422), we get a palindrome (387364463783).

The spelling of 224244021361 in words is "two hundred twenty-four billion, two hundred forty-four million, twenty-one thousand, three hundred sixty-one".