12241522509817 has 8 divisors (see below), whose sum is σ = 13076316602856. Its totient is φ = 11419473364992.

The previous prime is 12241522509781. The next prime is 12241522509841. The reversal of 12241522509817 is 71890522514221.

It can be written as a sum of positive squares in 4 ways, for example, as 1900030669056 + 10341491840761 = 1378416^2 + 3215819^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12241522509817 - 2⁴³ = 3445429487609 is a prime.

It is a super-2 number, since 2×12241522509817² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12241522509857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3186235068 + ... + 3186238909.

It is an arithmetic number, because the mean of its divisors is an integer number (1634539575357).

Almost surely, 2^{12241522509817} is an apocalyptic number.

12241522509817 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12241522509817 is a deficient number, since it is larger than the sum of its proper divisors (834794093039).

12241522509817 is a wasteful number, since it uses less digits than its factorization.

12241522509817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6372474107.

The product of its (nonzero) digits is 806400, while the sum is 49.

The spelling of 12241522509817 in words is "twelve trillion, two hundred forty-one billion, five hundred twenty-two million, five hundred nine thousand, eight hundred seventeen".