42242220424444 has 6 divisors (see below), whose sum is σ = 73923885742784. Its totient is φ = 21121110212220.

The previous prime is 42242220424381. The next prime is 42242220424447. The reversal of 42242220424444 is 44442402224224.

It is a junction number, because it is equal to n+sod(n) for n = 42242220424397 and 42242220424406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42242220424447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5280277553052 + ... + 5280277553059.

Almost surely, 2^{42242220424444} is an apocalyptic number.

It is an amenable number.

42242220424444 is a deficient number, since it is larger than the sum of its proper divisors (31681665318340).

42242220424444 is a wasteful number, since it uses less digits than its factorization.

42242220424444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10560555106115 (or 10560555106113 counting only the distinct ones).

The product of its (nonzero) digits is 1048576, while the sum is 40.

Adding to 42242220424444 its reverse (44442402224224), we get a palindrome (86684622648668).

The spelling of 42242220424444 in words is "forty-two trillion, two hundred forty-two billion, two hundred twenty million, four hundred twenty-four thousand, four hundred forty-four".