2221019 has 2 divisors, whose sum is σ = 2221020. Its totient is φ = 2221018.

The previous prime is 2221007. The next prime is 2221031. The reversal of 2221019 is 9101222.

It is a balanced prime because it is at equal distance from previous prime (2221007) and next prime (2221031).

It is a cyclic number.

It is not a de Polignac number, because 2221019 - 2²⁰ = 1172443 is a prime.

It is a super-2 number, since 2×2221019² = 9865850796722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2220988 and 2221006.

It is not a weakly prime, because it can be changed into another prime (2221069) 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, 1110509 + 1110510.

It is an arithmetic number, because the mean of its divisors is an integer number (1110510).

2^2221019 is an apocalyptic number.

2221019 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221019 is an equidigital number, since it uses as much as digits as its factorization.

2221019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2221019 is about 1490.3083573543. The cubic root of 2221019 is about 130.4720315082.

The spelling of 2221019 in words is "two million, two hundred twenty-one thousand, nineteen".