12040022 has 8 divisors (see below), whose sum is σ = 18548256. Its totient is φ = 5857272.

The previous prime is 12040013. The next prime is 12040027. The reversal of 12040022 is 22004021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12039985 and 12040012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81278 + ... + 81425.

It is an arithmetic number, because the mean of its divisors is an integer number (2318532).

Almost surely, 2^12040022 is an apocalyptic number.

12040022 is a deficient number, since it is larger than the sum of its proper divisors (6508234).

12040022 is a wasteful number, since it uses less digits than its factorization.

12040022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162742.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 12040022 is about 3469.8734847253. The cubic root of 12040022 is about 229.1970869296.

Adding to 12040022 its reverse (22004021), we get a palindrome (34044043).

The spelling of 12040022 in words is "twelve million, forty thousand, twenty-two".