22066322442 has 8 divisors (see below), whose sum is σ = 44132644896. Its totient is φ = 7355440812.

The previous prime is 22066322437. The next prime is 22066322449. The reversal of 22066322442 is 24422366022.

It is a happy number.

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

22066322442 is an admirable number.

It is a super-2 number, since 2×22066322442² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22066322449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1838860198 + ... + 1838860209.

It is an arithmetic number, because the mean of its divisors is an integer number (5516580612).

Almost surely, 2^22066322442 is an apocalyptic number.

22066322442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22066322442 is a wasteful number, since it uses less digits than its factorization.

22066322442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677720412.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 22066322442 its reverse (24422366022), we get a palindrome (46488688464).

The spelling of 22066322442 in words is "twenty-two billion, sixty-six million, three hundred twenty-two thousand, four hundred forty-two".