2216509511 has 2 divisors, whose sum is σ = 2216509512. Its totient is φ = 2216509510.

The previous prime is 2216509501. The next prime is 2216509523. The reversal of 2216509511 is 1159056122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2216509511 - 2²⁶ = 2149400647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2216509501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108254755 + 1108254756.

It is an arithmetic number, because the mean of its divisors is an integer number (1108254756).

Almost surely, 2^2216509511 is an apocalyptic number.

2216509511 is a deficient number, since it is larger than the sum of its proper divisors (1).

2216509511 is an equidigital number, since it uses as much as digits as its factorization.

2216509511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 2216509511 is about 47079.8206347475. The cubic root of 2216509511 is about 1303.8366953886.

The spelling of 2216509511 in words is "two billion, two hundred sixteen million, five hundred nine thousand, five hundred eleven".