2201115345509 has 2 divisors, whose sum is σ = 2201115345510. Its totient is φ = 2201115345508.

The previous prime is 2201115345479. The next prime is 2201115345551. The reversal of 2201115345509 is 9055435111022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1962512404609 + 238602940900 = 1400897^2 + 488470^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201115345509 - 2¹² = 2201115341413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201115342509) 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, 1100557672754 + 1100557672755.

It is an arithmetic number, because the mean of its divisors is an integer number (1100557672755).

Almost surely, 2^{2201115345509} is an apocalyptic number.

It is an amenable number.

2201115345509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201115345509 is an equidigital number, since it uses as much as digits as its factorization.

2201115345509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 38.

The spelling of 2201115345509 in words is "two trillion, two hundred one billion, one hundred fifteen million, three hundred forty-five thousand, five hundred nine".