2218388867205 has 32 divisors (see below), whose sum is σ = 4079144448000. Its totient is φ = 1008455138112.

The previous prime is 2218388867197. The next prime is 2218388867207. The reversal of 2218388867205 is 5027688838122.

It is not a de Polignac number, because 2218388867205 - 2³ = 2218388867197 is a prime.

It is a super-2 number, since 2×2218388867205² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218388867207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58996605 + ... + 59034194.

It is an arithmetic number, because the mean of its divisors is an integer number (127473264000).

Almost surely, 2^{2218388867205} is an apocalyptic number.

It is an amenable number.

2218388867205 is a deficient number, since it is larger than the sum of its proper divisors (1860755580795).

2218388867205 is a wasteful number, since it uses less digits than its factorization.

2218388867205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118030993.

The product of its (nonzero) digits is 20643840, while the sum is 60.

The spelling of 2218388867205 in words is "two trillion, two hundred eighteen billion, three hundred eighty-eight million, eight hundred sixty-seven thousand, two hundred five".