22236073 has 2 divisors, whose sum is σ = 22236074. Its totient is φ = 22236072.

The previous prime is 22236047. The next prime is 22236077. The reversal of 22236073 is 37063222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14379264 + 7856809 = 3792^2 + 2803^2 .

It is a cyclic number.

It is not a de Polignac number, because 22236073 - 2⁵ = 22236041 is a prime.

It is a super-2 number, since 2×22236073² = 988885884922658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22236077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11118036 + 11118037.

It is an arithmetic number, because the mean of its divisors is an integer number (11118037).

Almost surely, 2^22236073 is an apocalyptic number.

It is an amenable number.

22236073 is a deficient number, since it is larger than the sum of its proper divisors (1).

22236073 is an equidigital number, since it uses as much as digits as its factorization.

22236073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 22236073 is about 4715.5140758988. The cubic root of 22236073 is about 281.2026206280.

Adding to 22236073 its reverse (37063222), we get a palindrome (59299295).

The spelling of 22236073 in words is "twenty-two million, two hundred thirty-six thousand, seventy-three".