12157225017309 has 24 divisors (see below), whose sum is σ = 18029346334272. Its totient is φ = 7889289046080.

The previous prime is 12157225017293. The next prime is 12157225017389. The reversal of 12157225017309 is 90371052275121.

12157225017309 is a `hidden beast` number, since 1 + 2 + 1 + 5 + 72 + 2 + 501 + 73 + 0 + 9 = 666.

It is not a de Polignac number, because 12157225017309 - 2⁴ = 12157225017293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12157225017389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37022097 + ... + 37349030.

It is an arithmetic number, because the mean of its divisors is an integer number (751222763928).

Almost surely, 2^{12157225017309} is an apocalyptic number.

It is an amenable number.

12157225017309 is a deficient number, since it is larger than the sum of its proper divisors (5872121316963).

12157225017309 is a wasteful number, since it uses less digits than its factorization.

12157225017309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74371617 (or 74371614 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 45.

The spelling of 12157225017309 in words is "twelve trillion, one hundred fifty-seven billion, two hundred twenty-five million, seventeen thousand, three hundred nine".