22444224442 has 8 divisors (see below), whose sum is σ = 33806031732. Its totient is φ = 11175547200.

The previous prime is 22444224421. The next prime is 22444224443. The reversal of 22444224442 is 24442244422.

It can be written as a sum of positive squares in 2 ways, for example, as 22440339601 + 3884841 = 149801^2 + 1971^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×22444224442² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22444224398 and 22444224407.

It is not an unprimeable number, because it can be changed into a prime (22444224443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23281909 + ... + 23282872.

Almost surely, 2^22444224442 is an apocalyptic number.

22444224442 is a deficient number, since it is larger than the sum of its proper divisors (11361807290).

22444224442 is a wasteful number, since it uses less digits than its factorization.

22444224442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46565024.

The product of its digits is 131072, while the sum is 34.

Adding to 22444224442 its reverse (24442244422), we get a palindrome (46886468864).

It can be divided in two parts, 2 and 2444224442, that multiplied together give a palindrome (4888448884).

The spelling of 22444224442 in words is "twenty-two billion, four hundred forty-four million, two hundred twenty-four thousand, four hundred forty-two".