224259743021 has 2 divisors, whose sum is σ = 224259743022. Its totient is φ = 224259743020.

The previous prime is 224259743009. The next prime is 224259743063. The reversal of 224259743021 is 120347952422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223431109225 + 828633796 = 472685^2 + 28786^2 .

It is a cyclic number.

It is not a de Polignac number, because 224259743021 - 2⁶ = 224259742957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 224259743021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224259743621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112129871510 + 112129871511.

It is an arithmetic number, because the mean of its divisors is an integer number (112129871511).

Almost surely, 2^224259743021 is an apocalyptic number.

It is an amenable number.

224259743021 is a deficient number, since it is larger than the sum of its proper divisors (1).

224259743021 is an equidigital number, since it uses as much as digits as its factorization.

224259743021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 224259743021 in words is "two hundred twenty-four billion, two hundred fifty-nine million, seven hundred forty-three thousand, twenty-one".