12151015121 has 8 divisors (see below), whose sum is σ = 14209825344. Its totient is φ = 10172942640.

The previous prime is 12151015087. The next prime is 12151015153.

12151015121 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 12151015121 - 2⁶ = 12151015057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12151015093 and 12151015102.

It is not an unprimeable number, because it can be changed into a prime (12151015021) 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, 20184110 + ... + 20184711.

It is an arithmetic number, because the mean of its divisors is an integer number (1776228168).

Almost surely, 2^12151015121 is an apocalyptic number.

It is an amenable number.

12151015121 is a deficient number, since it is larger than the sum of its proper divisors (2058810223).

12151015121 is an equidigital number, since it uses as much as digits as its factorization.

12151015121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40368871.

The product of its (nonzero) digits is 100, while the sum is 20.

It can be divided in two parts, 121510 and 15121, that added together give a palindrome (136631).

The spelling of 12151015121 in words is "twelve billion, one hundred fifty-one million, fifteen thousand, one hundred twenty-one".