42121422244 has 24 divisors (see below), whose sum is σ = 83186510400. Its totient is φ = 18485890080.

The previous prime is 42121422197. The next prime is 42121422247. The reversal of 42121422244 is 44222412124.

It is a happy number.

42121422244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (42121422247) 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, 16503984 + ... + 16506535.

It is an arithmetic number, because the mean of its divisors is an integer number (3466104600).

Almost surely, 2^42121422244 is an apocalyptic number.

42121422244 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42121422244 is a deficient number, since it is larger than the sum of its proper divisors (41065088156).

42121422244 is a wasteful number, since it uses less digits than its factorization.

42121422244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33010563 (or 33010561 counting only the distinct ones).

The product of its digits is 8192, while the sum is 28.

Adding to 42121422244 its reverse (44222412124), we get a palindrome (86343834368).

The spelling of 42121422244 in words is "forty-two billion, one hundred twenty-one million, four hundred twenty-two thousand, two hundred forty-four".