12124242251255 has 4 divisors (see below), whose sum is σ = 14549090701512. Its totient is φ = 9699393801000.

The previous prime is 12124242251221. The next prime is 12124242251267. The reversal of 12124242251255 is 55215224242121.

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

It is a de Polignac number, because none of the positive numbers 2^k-12124242251255 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 3 ways as a sum of consecutive naturals, for example, 1212424225121 + ... + 1212424225130.

It is an arithmetic number, because the mean of its divisors is an integer number (3637272675378).

Almost surely, 2^{12124242251255} is an apocalyptic number.

12124242251255 is a deficient number, since it is larger than the sum of its proper divisors (2424848450257).

12124242251255 is an equidigital number, since it uses as much as digits as its factorization.

12124242251255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2424848450256.

The product of its digits is 128000, while the sum is 38.

Adding to 12124242251255 its reverse (55215224242121), we get a palindrome (67339466493376).

The spelling of 12124242251255 in words is "twelve trillion, one hundred twenty-four billion, two hundred forty-two million, two hundred fifty-one thousand, two hundred fifty-five".