22219065805 has 8 divisors (see below), whose sum is σ = 26739279000. Its totient is φ = 17724319296.

The previous prime is 22219065733. The next prime is 22219065833. The reversal of 22219065805 is 50856091222.

It can be written as a sum of positive squares in 4 ways, for example, as 4262261796 + 17956804009 = 65286^2 + 134003^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22219065805 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6364750 + ... + 6368239.

It is an arithmetic number, because the mean of its divisors is an integer number (3342409875).

Almost surely, 2^22219065805 is an apocalyptic number.

It is an amenable number.

22219065805 is a deficient number, since it is larger than the sum of its proper divisors (4520213195).

22219065805 is a wasteful number, since it uses less digits than its factorization.

22219065805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12733343.

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 22219065805 in words is "twenty-two billion, two hundred nineteen million, sixty-five thousand, eight hundred five".