2218550558122 has 16 divisors (see below), whose sum is σ = 3338142469344. Its totient is φ = 1105836930000.

The previous prime is 2218550558117. The next prime is 2218550558149.

2218550558122 is nontrivially palindromic in base 10.

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, 8732997 + ... + 8983447.

It is an arithmetic number, because the mean of its divisors is an integer number (208633904334).

Almost surely, 2^{2218550558122} is an apocalyptic number.

2218550558122 is a deficient number, since it is larger than the sum of its proper divisors (1119591911222).

2218550558122 is a wasteful number, since it uses less digits than its factorization.

2218550558122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264165.

The product of its (nonzero) digits is 640000, while the sum is 46.

The spelling of 2218550558122 in words is "two trillion, two hundred eighteen billion, five hundred fifty million, five hundred fifty-eight thousand, one hundred twenty-two".