22273352242 has 8 divisors (see below), whose sum is σ = 33957733932. Its totient is φ = 10954107600.

The previous prime is 22273352219. The next prime is 22273352249. The reversal of 22273352242 is 24225337222.

It can be written as a sum of positive squares in 2 ways, for example, as 19617083721 + 2656268521 = 140061^2 + 51539^2 .

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

It is a super-2 number, since 2×22273352242² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22273352198 and 22273352207.

It is not an unprimeable number, because it can be changed into a prime (22273352249) 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, 91284109 + ... + 91284352.

Almost surely, 2^22273352242 is an apocalyptic number.

22273352242 is a deficient number, since it is larger than the sum of its proper divisors (11684381690).

22273352242 is a wasteful number, since it uses less digits than its factorization.

22273352242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182568524.

The product of its digits is 80640, while the sum is 34.

Adding to 22273352242 its reverse (24225337222), we get a palindrome (46498689464).

The spelling of 22273352242 in words is "twenty-two billion, two hundred seventy-three million, three hundred fifty-two thousand, two hundred forty-two".