220118222440 has 16 divisors (see below), whose sum is σ = 495266000580. Its totient is φ = 88047288960.

The previous prime is 220118222437. The next prime is 220118222497. The reversal of 220118222440 is 44222811022.

It can be written as a sum of positive squares in 2 ways, for example, as 212047356196 + 8070866244 = 460486^2 + 89838^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220118222399 and 220118222408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2751477741 + ... + 2751477820.

Almost surely, 2^220118222440 is an apocalyptic number.

220118222440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220118222440 is an abundant number, since it is smaller than the sum of its proper divisors (275147778140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220118222440 is a wasteful number, since it uses less digits than its factorization.

220118222440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5502955572 (or 5502955568 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The spelling of 220118222440 in words is "two hundred twenty billion, one hundred eighteen million, two hundred twenty-two thousand, four hundred forty".