1120442220 has 60 divisors (see below), whose sum is σ = 3514873824. Its totient is φ = 298784160.

The previous prime is 1120442209. The next prime is 1120442311. The reversal of 1120442220 is 222440211.

1120442220 is a `hidden beast` number, since 1 + 1 + 2 + 0 + 442 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1120442193 and 1120442202.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 344196 + ... + 347435.

Almost surely, 2^1120442220 is an apocalyptic number.

1120442220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120442220 is an abundant number, since it is smaller than the sum of its proper divisors (2394431604).

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

1120442220 is a wasteful number, since it uses less digits than its factorization.

1120442220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691652 (or 691641 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1120442220 is about 33473.0073342686. The cubic root of 1120442220 is about 1038.6354824294.

Adding to 1120442220 its reverse (222440211), we get a palindrome (1342882431).

The spelling of 1120442220 in words is "one billion, one hundred twenty million, four hundred forty-two thousand, two hundred twenty".