22100297 has 2 divisors, whose sum is σ = 22100298. Its totient is φ = 22100296.

The previous prime is 22100261. The next prime is 22100317. The reversal of 22100297 is 79200122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18524416 + 3575881 = 4304^2 + 1891^2 .

It is a cyclic number.

It is not a de Polignac number, because 22100297 - 2⁸ = 22100041 is a prime.

It is not a weakly prime, because it can be changed into another prime (22100207) 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 as a sum of consecutive naturals, namely, 11050148 + 11050149.

It is an arithmetic number, because the mean of its divisors is an integer number (11050149).

Almost surely, 2^22100297 is an apocalyptic number.

It is an amenable number.

22100297 is a deficient number, since it is larger than the sum of its proper divisors (1).

22100297 is an equidigital number, since it uses as much as digits as its factorization.

22100297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 22100297 is about 4701.0952979066. The cubic root of 22100297 is about 280.6290999446.

The spelling of 22100297 in words is "twenty-two million, one hundred thousand, two hundred ninety-seven".