4040212105 has 4 divisors (see below), whose sum is σ = 4848254532. Its totient is φ = 3232169680.

The previous prime is 4040212097. The next prime is 4040212123. The reversal of 4040212105 is 5012120404.

4040212105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2238803856 + 1801408249 = 47316^2 + 42443^2 .

It is not a de Polignac number, because 4040212105 - 2³ = 4040212097 is a prime.

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, 404021206 + ... + 404021215.

It is an arithmetic number, because the mean of its divisors is an integer number (1212063633).

Almost surely, 2^4040212105 is an apocalyptic number.

It is an amenable number.

4040212105 is a deficient number, since it is larger than the sum of its proper divisors (808042427).

4040212105 is an equidigital number, since it uses as much as digits as its factorization.

4040212105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808042426.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 4040212105 is about 63562.6628218170. The cubic root of 4040212105 is about 1592.7027203370.

Adding to 4040212105 its reverse (5012120404), we get a palindrome (9052332509).

The spelling of 4040212105 in words is "four billion, forty million, two hundred twelve thousand, one hundred five".