2112412409 has 2 divisors, whose sum is σ = 2112412410. Its totient is φ = 2112412408.

The previous prime is 2112412397. The next prime is 2112412429. The reversal of 2112412409 is 9042142112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1929405625 + 183006784 = 43925^2 + 13528^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2112412409 is a prime.

It is not a weakly prime, because it can be changed into another prime (2112412429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056206204 + 1056206205.

It is an arithmetic number, because the mean of its divisors is an integer number (1056206205).

Almost surely, 2^2112412409 is an apocalyptic number.

It is an amenable number.

2112412409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112412409 is an equidigital number, since it uses as much as digits as its factorization.

2112412409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 2112412409 is about 45960.9879027856. The cubic root of 2112412409 is about 1283.0972376759.

It can be divided in two parts, 21124 and 12409, that added together give a palindrome (33533).

The spelling of 2112412409 in words is "two billion, one hundred twelve million, four hundred twelve thousand, four hundred nine".