22197163 has 2 divisors, whose sum is σ = 22197164. Its totient is φ = 22197162.

The previous prime is 22197127. The next prime is 22197169. The reversal of 22197163 is 36179122.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22197163 is a prime.

It is not a weakly prime, because it can be changed into another prime (22197169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11098581 + 11098582.

It is an arithmetic number, because the mean of its divisors is an integer number (11098582).

Almost surely, 2^22197163 is an apocalyptic number.

22197163 is a deficient number, since it is larger than the sum of its proper divisors (1).

22197163 is an equidigital number, since it uses as much as digits as its factorization.

22197163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 31.

The square root of 22197163 is about 4711.3865262786. The cubic root of 22197163 is about 281.0385031860.

The spelling of 22197163 in words is "twenty-two million, one hundred ninety-seven thousand, one hundred sixty-three".