224321240981 has 2 divisors, whose sum is σ = 224321240982. Its totient is φ = 224321240980.

The previous prime is 224321240963. The next prime is 224321241007. The reversal of 224321240981 is 189042123422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153357608881 + 70963632100 = 391609^2 + 266390^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224321240981 is a prime.

It is a super-2 number, since 2×224321240981² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224321240081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112160620490 + 112160620491.

It is an arithmetic number, because the mean of its divisors is an integer number (112160620491).

Almost surely, 2^224321240981 is an apocalyptic number.

It is an amenable number.

224321240981 is a deficient number, since it is larger than the sum of its proper divisors (1).

224321240981 is an equidigital number, since it uses as much as digits as its factorization.

224321240981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 224321240981 in words is "two hundred twenty-four billion, three hundred twenty-one million, two hundred forty thousand, nine hundred eighty-one".