2011126217 has 2 divisors, whose sum is σ = 2011126218. Its totient is φ = 2011126216.

The previous prime is 2011126213. The next prime is 2011126261. The reversal of 2011126217 is 7126211102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1261954576 + 749171641 = 35524^2 + 27371^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011126217 - 2² = 2011126213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2011126192 and 2011126201.

It is not a weakly prime, because it can be changed into another prime (2011126213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005563108 + 1005563109.

It is an arithmetic number, because the mean of its divisors is an integer number (1005563109).

Almost surely, 2^2011126217 is an apocalyptic number.

It is an amenable number.

2011126217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011126217 is an equidigital number, since it uses as much as digits as its factorization.

2011126217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 2011126217 is about 44845.5819117112. The cubic root of 2011126217 is about 1262.2530899296.

Adding to 2011126217 its reverse (7126211102), we get a palindrome (9137337319).

The spelling of 2011126217 in words is "two billion, eleven million, one hundred twenty-six thousand, two hundred seventeen".