2216210761 has 12 divisors (see below), whose sum is σ = 2282483700. Its totient is φ = 2150579840.

The previous prime is 2216210713. The next prime is 2216210767. The reversal of 2216210761 is 1670126122.

It can be written as a sum of positive squares in 2 ways, for example, as 1009968400 + 1206242361 = 31780^2 + 34731^2 .

It is not a de Polignac number, because 2216210761 - 2¹¹ = 2216208713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2216210767) 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 in 11 ways as a sum of consecutive naturals, for example, 2112165 + ... + 2113213.

It is an arithmetic number, because the mean of its divisors is an integer number (190206975).

Almost surely, 2^2216210761 is an apocalyptic number.

It is an amenable number.

2216210761 is a deficient number, since it is larger than the sum of its proper divisors (66272939).

2216210761 is an equidigital number, since it uses as much as digits as its factorization.

2216210761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544 (or 1317 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 2216210761 is about 47076.6477247478. The cubic root of 2216210761 is about 1303.7781139850.

Adding to 2216210761 its reverse (1670126122), we get a palindrome (3886336883).

It can be divided in two parts, 22162 and 10761, that added together give a palindrome (32923).

The spelling of 2216210761 in words is "two billion, two hundred sixteen million, two hundred ten thousand, seven hundred sixty-one".