222022666442 has 8 divisors (see below), whose sum is σ = 339317660196. Its totient is φ = 108916779712.

The previous prime is 222022666441. The next prime is 222022666451. The reversal of 222022666442 is 244666220222.

It can be written as a sum of positive squares in 2 ways, for example, as 221265811321 + 756855121 = 470389^2 + 27511^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 222022666396 and 222022666405.

It is not an unprimeable number, because it can be changed into a prime (222022666441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047276623 + ... + 1047276834.

Almost surely, 2^222022666442 is an apocalyptic number.

222022666442 is a deficient number, since it is larger than the sum of its proper divisors (117294993754).

222022666442 is a wasteful number, since it uses less digits than its factorization.

222022666442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094553512.

The product of its (nonzero) digits is 221184, while the sum is 38.

Adding to 222022666442 its reverse (244666220222), we get a palindrome (466688886664).

The spelling of 222022666442 in words is "two hundred twenty-two billion, twenty-two million, six hundred sixty-six thousand, four hundred forty-two".