2201220409 has 2 divisors, whose sum is σ = 2201220410. Its totient is φ = 2201220408.

The previous prime is 2201220403. The next prime is 2201220431. The reversal of 2201220409 is 9040221022.

It is an a-pointer prime, because the next prime (2201220431) can be obtained adding 2201220409 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1180609600 + 1020610809 = 34360^2 + 31947^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201220409 - 2¹⁵ = 2201187641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2201220409.

It is not a weakly prime, because it can be changed into another prime (2201220403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100610204 + 1100610205.

It is an arithmetic number, because the mean of its divisors is an integer number (1100610205).

Almost surely, 2^2201220409 is an apocalyptic number.

It is an amenable number.

2201220409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201220409 is an equidigital number, since it uses as much as digits as its factorization.

2201220409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2201220409 is about 46917.1653981781. The cubic root of 2201220409 is about 1300.8318953510.

The spelling of 2201220409 in words is "two billion, two hundred one million, two hundred twenty thousand, four hundred nine".