4224442301581 has 2 divisors, whose sum is σ = 4224442301582. Its totient is φ = 4224442301580.

The previous prime is 4224442301477. The next prime is 4224442301621. The reversal of 4224442301581 is 1851032444224.

It is a happy number.

It is an a-pointer prime, because the next prime (4224442301621) can be obtained adding 4224442301581 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4182393108100 + 42049193481 = 2045090^2 + 205059^2 .

It is a cyclic number.

It is not a de Polignac number, because 4224442301581 - 2¹³ = 4224442293389 is a prime.

It is a super-2 number, since 2×4224442301581² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4224442301381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2112221150790 + 2112221150791.

It is an arithmetic number, because the mean of its divisors is an integer number (2112221150791).

Almost surely, 2^{4224442301581} is an apocalyptic number.

It is an amenable number.

4224442301581 is a deficient number, since it is larger than the sum of its proper divisors (1).

4224442301581 is an equidigital number, since it uses as much as digits as its factorization.

4224442301581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 245760, while the sum is 40.

The spelling of 4224442301581 in words is "four trillion, two hundred twenty-four billion, four hundred forty-two million, three hundred one thousand, five hundred eighty-one".