2216171137 has 2 divisors, whose sum is σ = 2216171138. Its totient is φ = 2216171136.

The previous prime is 2216171123. The next prime is 2216171143. The reversal of 2216171137 is 7311716122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1760305936 + 455865201 = 41956^2 + 21351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2216171137 is a prime.

It is a super-2 number, since 2×2216171137² = 9822829016943745538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2216171099 and 2216171108.

It is not a weakly prime, because it can be changed into another prime (2216171197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108085568 + 1108085569.

It is an arithmetic number, because the mean of its divisors is an integer number (1108085569).

Almost surely, 2^2216171137 is an apocalyptic number.

It is an amenable number.

2216171137 is a deficient number, since it is larger than the sum of its proper divisors (1).

2216171137 is an equidigital number, since it uses as much as digits as its factorization.

2216171137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3528, while the sum is 31.

The square root of 2216171137 is about 47076.2268772679. The cubic root of 2216171137 is about 1303.7703437836.

Adding to 2216171137 its reverse (7311716122), we get a palindrome (9527887259).

The spelling of 2216171137 in words is "two billion, two hundred sixteen million, one hundred seventy-one thousand, one hundred thirty-seven".