12217485603904 has 63 divisors (see below), whose sum is σ = 28202740838373. Its totient is φ = 5235981370368.

The previous prime is 12217485603893. The next prime is 12217485603913. The reversal of 12217485603904 is 40930658471221.

The square root of 12217485603904 is 3495352.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 87924110400 + 12129561493504 = 296520^2 + 3482752^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 195708504 + ... + 195770920.

It is a 1-persistent number, because it is pandigital, but 2⋅12217485603904 = 24434971207808 is not.

Almost surely, 2^{12217485603904} is an apocalyptic number.

12217485603904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12217485603904 is the 3495352-nd square number.

It is an amenable number.

12217485603904 is an abundant number, since it is smaller than the sum of its proper divisors (15985255234469).

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

12217485603904 is an frugal number, since it uses more digits than its factorization.

12217485603904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124860 (or 62426 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 12217485603904 in words is "twelve trillion, two hundred seventeen billion, four hundred eighty-five million, six hundred three thousand, nine hundred four".