22424422042 has 24 divisors (see below), whose sum is σ = 36981674100. Its totient is φ = 10190389440.

The previous prime is 22424422039. The next prime is 22424422049. The reversal of 22424422042 is 24022442422.

It can be written as a sum of positive squares in 2 ways, for example, as 14405040441 + 8019381601 = 120021^2 + 89551^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22424422042.

It is not an unprimeable number, because it can be changed into a prime (22424422049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1251684 + ... + 1269472.

Almost surely, 2^22424422042 is an apocalyptic number.

22424422042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22424422042 is a deficient number, since it is larger than the sum of its proper divisors (14557252058).

22424422042 is a wasteful number, since it uses less digits than its factorization.

22424422042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23022 (or 23011 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 22424422042 its reverse (24022442422), we get a palindrome (46446864464).

The spelling of 22424422042 in words is "twenty-two billion, four hundred twenty-four million, four hundred twenty-two thousand, forty-two".