12404450221115 has 4 divisors (see below), whose sum is σ = 14885340265344. Its totient is φ = 9923560176888.

The previous prime is 12404450221081. The next prime is 12404450221139. The reversal of 12404450221115 is 51112205440421.

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 12404450221115 - 2²⁰ = 12404449172539 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, 1240445022107 + ... + 1240445022116.

It is an arithmetic number, because the mean of its divisors is an integer number (3721335066336).

Almost surely, 2^{12404450221115} is an apocalyptic number.

12404450221115 is a deficient number, since it is larger than the sum of its proper divisors (2480890044229).

12404450221115 is an equidigital number, since it uses as much as digits as its factorization.

12404450221115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2480890044228.

The product of its (nonzero) digits is 12800, while the sum is 32.

Adding to 12404450221115 its reverse (51112205440421), we get a palindrome (63516655661536).

The spelling of 12404450221115 in words is "twelve trillion, four hundred four billion, four hundred fifty million, two hundred twenty-one thousand, one hundred fifteen".