2201127278249 has 2 divisors, whose sum is σ = 2201127278250. Its totient is φ = 2201127278248.

The previous prime is 2201127278191. The next prime is 2201127278297. The reversal of 2201127278249 is 9428727211022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2196451453849 + 4675824400 = 1482043^2 + 68380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2201127278249 is a prime.

It is a super-2 number, since 2×2201127278249² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2201127271249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100563639124 + 1100563639125.

It is an arithmetic number, because the mean of its divisors is an integer number (1100563639125).

Almost surely, 2^{2201127278249} is an apocalyptic number.

It is an amenable number.

2201127278249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201127278249 is an equidigital number, since it uses as much as digits as its factorization.

2201127278249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 2201127278249 in words is "two trillion, two hundred one billion, one hundred twenty-seven million, two hundred seventy-eight thousand, two hundred forty-nine".