1120220 has 24 divisors (see below), whose sum is σ = 2385600. Its totient is φ = 441792.

The previous prime is 1120219. The next prime is 1120237. The reversal of 1120220 is 220211.

1120220 = T₃₁ + T₃₂ + ... + T₁₈₈.

It is a junction number, because it is equal to n+sod(n) for n = 1120198 and 1120207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1226 + ... + 1934.

It is an arithmetic number, because the mean of its divisors is an integer number (99400).

2^1120220 is an apocalyptic number.

1120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120220 is an abundant number, since it is smaller than the sum of its proper divisors (1265380).

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

1120220 is a wasteful number, since it uses less digits than its factorization.

1120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797 (or 795 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1120220 is about 1058.4044595522. The cubic root of 1120220 is about 103.8566812865.

Adding to 1120220 its reverse (220211), we get a palindrome (1340431).

Subtracting from 1120220 its reverse (220211), we obtain a palindrome (900009).

The spelling of 1120220 in words is "one million, one hundred twenty thousand, two hundred twenty".