12140621251165 has 32 divisors (see below), whose sum is σ = 16829576271360. Its totient is φ = 8309413862400.

The previous prime is 12140621251153. The next prime is 12140621251189. The reversal of 12140621251165 is 56115212604121.

12140621251165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-12140621251165 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9970255 + ... + 11121475.

It is an arithmetic number, because the mean of its divisors is an integer number (525924258480).

Almost surely, 2^{12140621251165} is an apocalyptic number.

It is an amenable number.

12140621251165 is a deficient number, since it is larger than the sum of its proper divisors (4688955020195).

12140621251165 is a wasteful number, since it uses less digits than its factorization.

12140621251165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162533.

The product of its (nonzero) digits is 28800, while the sum is 37.

Adding to 12140621251165 its reverse (56115212604121), we get a palindrome (68255833855286).

The spelling of 12140621251165 in words is "twelve trillion, one hundred forty billion, six hundred twenty-one million, two hundred fifty-one thousand, one hundred sixty-five".