22424006642 has 4 divisors (see below), whose sum is σ = 33636009966. Its totient is φ = 11212003320.

The previous prime is 22424006599. The next prime is 22424006651. The reversal of 22424006642 is 24660042422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24660042422 = 2 ⋅12330021211.

It can be written as a sum of positive squares in only one way, i.e., 21526464961 + 897541681 = 146719^2 + 29959^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22424006599 and 22424006608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606001659 + ... + 5606001662.

Almost surely, 2^22424006642 is an apocalyptic number.

22424006642 is a deficient number, since it is larger than the sum of its proper divisors (11212003324).

22424006642 is a wasteful number, since it uses less digits than its factorization.

22424006642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11212003323.

The product of its (nonzero) digits is 36864, while the sum is 32.

The spelling of 22424006642 in words is "twenty-two billion, four hundred twenty-four million, six thousand, six hundred forty-two".