22219065 has 24 divisors (see below), whose sum is σ = 42015168. Its totient is φ = 10772640.

The previous prime is 22219063. The next prime is 22219073. The reversal of 22219065 is 56091222.

It is not a de Polignac number, because 22219065 - 2¹ = 22219063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22219063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21949 + ... + 22938.

It is an arithmetic number, because the mean of its divisors is an integer number (1750632).

Almost surely, 2^22219065 is an apocalyptic number.

It is an amenable number.

22219065 is a deficient number, since it is larger than the sum of its proper divisors (19796103).

22219065 is a wasteful number, since it uses less digits than its factorization.

22219065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44909 (or 44906 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 22219065 is about 4713.7103220287. The cubic root of 22219065 is about 281.1309066149.

The spelling of 22219065 in words is "twenty-two million, two hundred nineteen thousand, sixty-five".