22312163 has 2 divisors, whose sum is σ = 22312164. Its totient is φ = 22312162.

The previous prime is 22312127. The next prime is 22312181. The reversal of 22312163 is 36121322.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22312163 - 2⁸ = 22311907 is a prime.

It is a super-3 number, since 3×22312163³ (a number of 23 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (22312123) 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, 11156081 + 11156082.

It is an arithmetic number, because the mean of its divisors is an integer number (11156082).

Almost surely, 2^22312163 is an apocalyptic number.

22312163 is a deficient number, since it is larger than the sum of its proper divisors (1).

22312163 is an equidigital number, since it uses as much as digits as its factorization.

22312163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 20.

The square root of 22312163 is about 4723.5752349253. The cubic root of 22312163 is about 281.5230061531.

Adding to 22312163 its reverse (36121322), we get a palindrome (58433485).

The spelling of 22312163 in words is "twenty-two million, three hundred twelve thousand, one hundred sixty-three".