12040322421215 has 16 divisors (see below), whose sum is σ = 15761993087520. Its totient is φ = 8756533422720.

The previous prime is 12040322421199. The next prime is 12040322421221. The reversal of 12040322421215 is 51212422304021.

It is not a de Polignac number, because 12040322421215 - 2⁴ = 12040322421199 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7465001 + ... + 8933469.

It is an arithmetic number, because the mean of its divisors is an integer number (985124567970).

Almost surely, 2^{12040322421215} is an apocalyptic number.

12040322421215 is a deficient number, since it is larger than the sum of its proper divisors (3721670666305).

12040322421215 is a wasteful number, since it uses less digits than its factorization.

12040322421215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617562.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 12040322421215 its reverse (51212422304021), we get a palindrome (63252744725236).

The spelling of 12040322421215 in words is "twelve trillion, forty billion, three hundred twenty-two million, four hundred twenty-one thousand, two hundred fifteen".