12218454603187 has 16 divisors (see below), whose sum is σ = 14415470272512. Its totient is φ = 10134369732960.

The previous prime is 12218454603181. The next prime is 12218454603211. The reversal of 12218454603187 is 78130645481221.

It is a cyclic number.

It is not a de Polignac number, because 12218454603187 - 2¹⁵ = 12218454570419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12218454603181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 839253 + ... + 5014105.

It is an arithmetic number, because the mean of its divisors is an integer number (900966892032).

Almost surely, 2^{12218454603187} is an apocalyptic number.

12218454603187 is a deficient number, since it is larger than the sum of its proper divisors (2197015669325).

12218454603187 is a wasteful number, since it uses less digits than its factorization.

12218454603187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4188378.

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 12218454603187 in words is "twelve trillion, two hundred eighteen billion, four hundred fifty-four million, six hundred three thousand, one hundred eighty-seven".