2216941 has 2 divisors, whose sum is σ = 2216942. Its totient is φ = 2216940.

The previous prime is 2216917. The next prime is 2216957. The reversal of 2216941 is 1496122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2090916 + 126025 = 1446^2 + 355^2 .

It is a cyclic number.

It is not a de Polignac number, because 2216941 - 2⁵ = 2216909 is a prime.

It is equal to p₁₆₃₈₂₅ and since 2216941 and 163825 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211941) 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, 1108470 + 1108471.

It is an arithmetic number, because the mean of its divisors is an integer number (1108471).

2^2216941 is an apocalyptic number.

It is an amenable number.

2216941 is a deficient number, since it is larger than the sum of its proper divisors (1).

2216941 is an equidigital number, since it uses as much as digits as its factorization.

2216941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 25.

The square root of 2216941 is about 1488.9395555227. The cubic root of 2216941 is about 130.3921296077.

The spelling of 2216941 in words is "two million, two hundred sixteen thousand, nine hundred forty-one".