12101265281 has 16 divisors (see below), whose sum is σ = 14609765760. Its totient is φ = 9791591040.

The previous prime is 12101265271. The next prime is 12101265283. The reversal of 12101265281 is 18256210121.

It is not a de Polignac number, because 12101265281 - 2¹⁸ = 12101003137 is a prime.

It is a super-2 number, since 2×12101265281² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12101265283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124526 + ... + 199271.

It is an arithmetic number, because the mean of its divisors is an integer number (913110360).

Almost surely, 2^12101265281 is an apocalyptic number.

It is an amenable number.

12101265281 is a deficient number, since it is larger than the sum of its proper divisors (2508500479).

12101265281 is a wasteful number, since it uses less digits than its factorization.

12101265281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324104.

The product of its (nonzero) digits is 1920, while the sum is 29.

The spelling of 12101265281 in words is "twelve billion, one hundred one million, two hundred sixty-five thousand, two hundred eighty-one".