2211231301117 has 2 divisors, whose sum is σ = 2211231301118. Its totient is φ = 2211231301116.

The previous prime is 2211231301043. The next prime is 2211231301127. The reversal of 2211231301117 is 7111031321122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1947891957561 + 263339343556 = 1395669^2 + 513166^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211231301117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2211231301091 and 2211231301100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211231301127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105615650558 + 1105615650559.

It is an arithmetic number, because the mean of its divisors is an integer number (1105615650559).

Almost surely, 2^{2211231301117} is an apocalyptic number.

It is an amenable number.

2211231301117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211231301117 is an equidigital number, since it uses as much as digits as its factorization.

2211231301117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

Adding to 2211231301117 its reverse (7111031321122), we get a palindrome (9322262622239).

The spelling of 2211231301117 in words is "two trillion, two hundred eleven billion, two hundred thirty-one million, three hundred one thousand, one hundred seventeen".