22219065845 has 8 divisors (see below), whose sum is σ = 27028124376. Its totient is φ = 17531755776.

The previous prime is 22219065833. The next prime is 22219065859. The reversal of 22219065845 is 54856091222.

It can be written as a sum of positive squares in 4 ways, for example, as 1331301169 + 20887764676 = 36487^2 + 144526^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22219065845 - 2²² = 22214871541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22219065796 and 22219065805.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 30436712 + ... + 30437441.

It is an arithmetic number, because the mean of its divisors is an integer number (3378515547).

Almost surely, 2^22219065845 is an apocalyptic number.

It is an amenable number.

22219065845 is a deficient number, since it is larger than the sum of its proper divisors (4809058531).

22219065845 is an equidigital number, since it uses as much as digits as its factorization.

22219065845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60874231.

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 22219065845 in words is "twenty-two billion, two hundred nineteen million, sixty-five thousand, eight hundred forty-five".