2221097 has 2 divisors, whose sum is σ = 2221098. Its totient is φ = 2221096.

The previous prime is 2221069. The next prime is 2221111. The reversal of 2221097 is 7901222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2128681 + 92416 = 1459^2 + 304^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221097 - 2¹⁰ = 2220073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2221007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110548 + 1110549.

It is an arithmetic number, because the mean of its divisors is an integer number (1110549).

2^2221097 is an apocalyptic number.

It is an amenable number.

2221097 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221097 is an equidigital number, since it uses as much as digits as its factorization.

2221097 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 2221097 is about 1490.3345262054. The cubic root of 2221097 is about 130.4735588400.

The spelling of 2221097 in words is "two million, two hundred twenty-one thousand, ninety-seven".