22300066 has 4 divisors (see below), whose sum is σ = 33450102. Its totient is φ = 11150032.

The previous prime is 22300063. The next prime is 22300081. The reversal of 22300066 is 66000322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18671041 + 3629025 = 4321^2 + 1905^2 .

It is not an unprimeable number, because it can be changed into a prime (22300063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5575015 + ... + 5575018.

Almost surely, 2^22300066 is an apocalyptic number.

22300066 is a deficient number, since it is larger than the sum of its proper divisors (11150036).

22300066 is a wasteful number, since it uses less digits than its factorization.

22300066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11150035.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 22300066 is about 4722.2945693804. The cubic root of 22300066 is about 281.4721191181.

Adding to 22300066 its reverse (66000322), we get a palindrome (88300388).

The spelling of 22300066 in words is "twenty-two million, three hundred thousand, sixty-six".