12215414454 has 16 divisors (see below), whose sum is σ = 24891788592. Its totient is φ = 3994978208.

The previous prime is 12215414441. The next prime is 12215414467. The reversal of 12215414454 is 45441451221.

12215414454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12215414441) and next prime (12215414467).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19206309 + ... + 19206944.

It is an arithmetic number, because the mean of its divisors is an integer number (1555736787).

Almost surely, 2^12215414454 is an apocalyptic number.

12215414454 is an abundant number, since it is smaller than the sum of its proper divisors (12676374138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12215414454 is a wasteful number, since it uses less digits than its factorization.

12215414454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38413311.

The product of its digits is 25600, while the sum is 33.

Adding to 12215414454 its reverse (45441451221), we get a palindrome (57656865675).

The spelling of 12215414454 in words is "twelve billion, two hundred fifteen million, four hundred fourteen thousand, four hundred fifty-four".