1122218455257 has 16 divisors (see below), whose sum is σ = 1662713801280. Its totient is φ = 748070063136.

The previous prime is 1122218455249. The next prime is 1122218455291. The reversal of 1122218455257 is 7525548122211.

1122218455257 is a `hidden beast` number, since 1 + 1 + 22 + 21 + 8 + 4 + 552 + 57 = 666.

It is not a de Polignac number, because 1122218455257 - 2³ = 1122218455249 is a prime.

It is a super-2 number, since 2×1122218455257² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1122218455217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1826388 + ... + 2362229.

It is an arithmetic number, because the mean of its divisors is an integer number (103919612580).

Almost surely, 2^{1122218455257} is an apocalyptic number.

It is an amenable number.

1122218455257 is a deficient number, since it is larger than the sum of its proper divisors (540495346023).

1122218455257 is an equidigital number, since it uses as much as digits as its factorization.

1122218455257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4198549 (or 4198543 counting only the distinct ones).

The product of its digits is 448000, while the sum is 45.

The spelling of 1122218455257 in words is "one trillion, one hundred twenty-two billion, two hundred eighteen million, four hundred fifty-five thousand, two hundred fifty-seven".