2144400200209 has 2 divisors, whose sum is σ = 2144400200210. Its totient is φ = 2144400200208.

The previous prime is 2144400200147. The next prime is 2144400200231. The reversal of 2144400200209 is 9020020044412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2017047571984 + 127352628225 = 1420228^2 + 356865^2 .

It is a cyclic number.

It is not a de Polignac number, because 2144400200209 - 2³⁷ = 2006961246737 is a prime.

It is not a weakly prime, because it can be changed into another prime (2144400200249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072200100104 + 1072200100105.

It is an arithmetic number, because the mean of its divisors is an integer number (1072200100105).

Almost surely, 2^{2144400200209} is an apocalyptic number.

It is an amenable number.

2144400200209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144400200209 is an equidigital number, since it uses as much as digits as its factorization.

2144400200209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 28.

The spelling of 2144400200209 in words is "two trillion, one hundred forty-four billion, four hundred million, two hundred thousand, two hundred nine".