12040036034221 has 4 divisors (see below), whose sum is σ = 12966192652252. Its totient is φ = 11113879416192.

The previous prime is 12040036034171. The next prime is 12040036034231. The reversal of 12040036034221 is 12243063004021.

It is a happy number.

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 2080085062500 + 9959950971721 = 1442250^2 + 3155939^2 .

It is a cyclic number.

It is not a de Polignac number, because 12040036034221 - 2⁷ = 12040036034093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12040036034221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040036034231) 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, 463078308996 + ... + 463078309021.

It is an arithmetic number, because the mean of its divisors is an integer number (3241548163063).

Almost surely, 2^{12040036034221} is an apocalyptic number.

It is an amenable number.

12040036034221 is a deficient number, since it is larger than the sum of its proper divisors (926156618031).

12040036034221 is an equidigital number, since it uses as much as digits as its factorization.

12040036034221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926156618030.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 12040036034221 its reverse (12243063004021), we get a palindrome (24283099038242).

The spelling of 12040036034221 in words is "twelve trillion, forty billion, thirty-six million, thirty-four thousand, two hundred twenty-one".