12227125308518 has 4 divisors (see below), whose sum is σ = 18340687962780. Its totient is φ = 6113562654258.

The previous prime is 12227125308427. The next prime is 12227125308539. The reversal of 12227125308518 is 81580352172221.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3056781327128 + ... + 3056781327131.

It is an arithmetic number, because the mean of its divisors is an integer number (4585171990695).

Almost surely, 2^{12227125308518} is an apocalyptic number.

12227125308518 is a deficient number, since it is larger than the sum of its proper divisors (6113562654262).

12227125308518 is an equidigital number, since it uses as much as digits as its factorization.

12227125308518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6113562654261.

The product of its (nonzero) digits is 537600, while the sum is 47.

The spelling of 12227125308518 in words is "twelve trillion, two hundred twenty-seven billion, one hundred twenty-five million, three hundred eight thousand, five hundred eighteen".