2112200305 has 4 divisors (see below), whose sum is σ = 2534640372. Its totient is φ = 1689760240.

The previous prime is 2112200281. The next prime is 2112200333. The reversal of 2112200305 is 5030022112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 566059264 + 1546141041 = 23792^2 + 39321^2 .

It is not a de Polignac number, because 2112200305 - 2⁵ = 2112200273 is a prime.

It is a super-2 number, since 2×2112200305² = 8922780256884186050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211220026 + ... + 211220035.

It is an arithmetic number, because the mean of its divisors is an integer number (633660093).

Almost surely, 2^2112200305 is an apocalyptic number.

It is an amenable number.

2112200305 is a deficient number, since it is larger than the sum of its proper divisors (422440067).

2112200305 is an equidigital number, since it uses as much as digits as its factorization.

2112200305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422440066.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2112200305 is about 45958.6804096897. The cubic root of 2112200305 is about 1283.0542916482.

Adding to 2112200305 its reverse (5030022112), we get a palindrome (7142222417).

The spelling of 2112200305 in words is "two billion, one hundred twelve million, two hundred thousand, three hundred five".