12349423076221 has 16 divisors (see below), whose sum is σ = 15442370835840. Its totient is φ = 9594372372480.

The previous prime is 12349423076219. The next prime is 12349423076227. The reversal of 12349423076221 is 12267032494321.

It is not a de Polignac number, because 12349423076221 - 2¹ = 12349423076219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12349423076227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237929716 + ... + 237981613.

It is an arithmetic number, because the mean of its divisors is an integer number (965148177240).

Almost surely, 2^{12349423076221} is an apocalyptic number.

12349423076221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12349423076221 is a deficient number, since it is larger than the sum of its proper divisors (3092947759619).

12349423076221 is a wasteful number, since it uses less digits than its factorization.

12349423076221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475911684.

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 12349423076221 in words is "twelve trillion, three hundred forty-nine billion, four hundred twenty-three million, seventy-six thousand, two hundred twenty-one".