2220209249 has 2 divisors, whose sum is σ = 2220209250. Its totient is φ = 2220209248.

The previous prime is 2220209227. The next prime is 2220209269. The reversal of 2220209249 is 9429020222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2165227024 + 54982225 = 46532^2 + 7415^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220209249 - 2¹² = 2220205153 is a prime.

It is not a weakly prime, because it can be changed into another prime (2220209269) 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, 1110104624 + 1110104625.

It is an arithmetic number, because the mean of its divisors is an integer number (1110104625).

Almost surely, 2^2220209249 is an apocalyptic number.

It is an amenable number.

2220209249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220209249 is an equidigital number, since it uses as much as digits as its factorization.

2220209249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 2220209249 is about 47119.0964365829. The cubic root of 2220209249 is about 1304.5617351686.

The spelling of 2220209249 in words is "two billion, two hundred twenty million, two hundred nine thousand, two hundred forty-nine".