40120211 has 4 divisors (see below), whose sum is σ = 41864592. Its totient is φ = 38375832.

The previous prime is 40120139. The next prime is 40120217. The reversal of 40120211 is 11202104.

40120211 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 is a cyclic number.

It is not a de Polignac number, because 40120211 - 2¹⁰ = 40119187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40120192 and 40120201.

It is not an unprimeable number, because it can be changed into a prime (40120217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 872156 + ... + 872201.

It is an arithmetic number, because the mean of its divisors is an integer number (10466148).

Almost surely, 2^40120211 is an apocalyptic number.

40120211 is a deficient number, since it is larger than the sum of its proper divisors (1744381).

40120211 is a wasteful number, since it uses less digits than its factorization.

40120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744380.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 40120211 is about 6334.0517048726. The cubic root of 40120211 is about 342.3374432391.

Adding to 40120211 its reverse (11202104), we get a palindrome (51322315).

The spelling of 40120211 in words is "forty million, one hundred twenty thousand, two hundred eleven".