12145233215 has 8 divisors (see below), whose sum is σ = 14574949488. Its totient is φ = 9715740160.

The previous prime is 12145233209. The next prime is 12145233223. The reversal of 12145233215 is 51233254121.

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

It is not a de Polignac number, because 12145233215 - 2¹⁶ = 12145167679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107180 + ... + 189150.

It is an arithmetic number, because the mean of its divisors is an integer number (1821868686).

Almost surely, 2^12145233215 is an apocalyptic number.

12145233215 is a deficient number, since it is larger than the sum of its proper divisors (2429716273).

12145233215 is an equidigital number, since it uses as much as digits as its factorization.

12145233215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111609.

The product of its digits is 7200, while the sum is 29.

Adding to 12145233215 its reverse (51233254121), we get a palindrome (63378487336).

The spelling of 12145233215 in words is "twelve billion, one hundred forty-five million, two hundred thirty-three thousand, two hundred fifteen".