12150242255 has 4 divisors (see below), whose sum is σ = 14580290712. Its totient is φ = 9720193800.

The previous prime is 12150242191. The next prime is 12150242257. The reversal of 12150242255 is 55224205121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12150242255 - 2⁶ = 12150242191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12150242257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1215024221 + ... + 1215024230.

It is an arithmetic number, because the mean of its divisors is an integer number (3645072678).

Almost surely, 2^12150242255 is an apocalyptic number.

12150242255 is a deficient number, since it is larger than the sum of its proper divisors (2430048457).

12150242255 is an equidigital number, since it uses as much as digits as its factorization.

12150242255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2430048456.

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 12150242255 its reverse (55224205121), we get a palindrome (67374447376).

The spelling of 12150242255 in words is "twelve billion, one hundred fifty million, two hundred forty-two thousand, two hundred fifty-five".