2118227722 has 16 divisors (see below), whose sum is σ = 3422675592. Its totient is φ = 977379840.

The previous prime is 2118227719. The next prime is 2118227723. The reversal of 2118227722 is 2277228112.

It can be written as a sum of positive squares in 4 ways, for example, as 883337841 + 1234889881 = 29721^2 + 35141^2 .

It is not an unprimeable number, because it can be changed into a prime (2118227723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114118 + ... + 131374.

Almost surely, 2^2118227722 is an apocalyptic number.

2118227722 is a deficient number, since it is larger than the sum of its proper divisors (1304447870).

2118227722 is a wasteful number, since it uses less digits than its factorization.

2118227722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21993.

The product of its digits is 12544, while the sum is 34.

The square root of 2118227722 is about 46024.2079997038. The cubic root of 2118227722 is about 1284.2735823741.

The spelling of 2118227722 in words is "two billion, one hundred eighteen million, two hundred twenty-seven thousand, seven hundred twenty-two".