12971229088861 has 8 divisors (see below), whose sum is σ = 13003122646080. Its totient is φ = 12939359762112.

The previous prime is 12971229088847. The next prime is 12971229088871. The reversal of 12971229088861 is 16888092217921.

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 12971229088861 - 2¹⁹ = 12971228564573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12971229088793 and 12971229088802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12971229088871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4985415 + ... + 7127188.

It is an arithmetic number, because the mean of its divisors is an integer number (1625390330760).

Almost surely, 2^{12971229088861} is an apocalyptic number.

It is an amenable number.

12971229088861 is a deficient number, since it is larger than the sum of its proper divisors (31893557219).

12971229088861 is a wasteful number, since it uses less digits than its factorization.

12971229088861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12115235.

The product of its (nonzero) digits is 13934592, while the sum is 64.

The spelling of 12971229088861 in words is "twelve trillion, nine hundred seventy-one billion, two hundred twenty-nine million, eighty-eight thousand, eight hundred sixty-one".