12142111215 has 64 divisors (see below), whose sum is σ = 22065845760. Its totient is φ = 5652011520.

The previous prime is 12142111207. The next prime is 12142111231. The reversal of 12142111215 is 51211124121.

It is not a de Polignac number, because 12142111215 - 2³ = 12142111207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12142111191 and 12142111200.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 2083005 + ... + 2088825.

It is an arithmetic number, because the mean of its divisors is an integer number (344778840).

Almost surely, 2^12142111215 is an apocalyptic number.

12142111215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12142111215 is a deficient number, since it is larger than the sum of its proper divisors (9923734545).

12142111215 is a wasteful number, since it uses less digits than its factorization.

12142111215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6424.

The product of its digits is 160, while the sum is 21.

Adding to 12142111215 its reverse (51211124121), we get a palindrome (63353235336).

The spelling of 12142111215 in words is "twelve billion, one hundred forty-two million, one hundred eleven thousand, two hundred fifteen".