42443322321220 has 24 divisors (see below), whose sum is σ = 89131426839000. Its totient is φ = 16977243220992.

The previous prime is 42443322321187. The next prime is 42443322321221. The reversal of 42443322321220 is 2212322334424.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18229364611396 + 24213957709824 = 4269586^2 + 4920768^2 .

It is not an unprimeable number, because it can be changed into a prime (42443322321221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1217995 + ... + 9293554.

It is an arithmetic number, because the mean of its divisors is an integer number (3713809451625).

Almost surely, 2^{42443322321220} is an apocalyptic number.

It is an amenable number.

42443322321220 is an abundant number, since it is smaller than the sum of its proper divisors (46688104517780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42443322321220 is a wasteful number, since it uses less digits than its factorization.

42443322321220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10713447 (or 10713445 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 42443322321220 its reverse (2212322334424), we get a palindrome (44655644655644).

The spelling of 42443322321220 in words is "forty-two trillion, four hundred forty-three billion, three hundred twenty-two million, three hundred twenty-one thousand, two hundred twenty".