2216151731 has 2 divisors, whose sum is σ = 2216151732. Its totient is φ = 2216151730.

The previous prime is 2216151719. The next prime is 2216151733. The reversal of 2216151731 is 1371516122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2216151731 - 2²⁶ = 2149042867 is a prime.

It is a super-2 number, since 2×2216151731² = 9822656989628592722, which contains 22 as substring.

Together with 2216151733, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2216151694 and 2216151703.

It is not a weakly prime, because it can be changed into another prime (2216151733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108075865 + 1108075866.

It is an arithmetic number, because the mean of its divisors is an integer number (1108075866).

Almost surely, 2^2216151731 is an apocalyptic number.

2216151731 is a deficient number, since it is larger than the sum of its proper divisors (1).

2216151731 is an equidigital number, since it uses as much as digits as its factorization.

2216151731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 29.

The square root of 2216151731 is about 47076.0207642915. The cubic root of 2216151731 is about 1303.7665382651.

Adding to 2216151731 its reverse (1371516122), we get a palindrome (3587667853).

The spelling of 2216151731 in words is "two billion, two hundred sixteen million, one hundred fifty-one thousand, seven hundred thirty-one".