1100320220 has 24 divisors (see below), whose sum is σ = 2317308000. Its totient is φ = 438864192.

The previous prime is 1100320217. The next prime is 1100320237. The reversal of 1100320220 is 220230011.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71840 + ... + 85799.

It is an arithmetic number, because the mean of its divisors is an integer number (96554500).

Almost surely, 2^1100320220 is an apocalyptic number.

1100320220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100320220 is an abundant number, since it is smaller than the sum of its proper divisors (1216987780).

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

1100320220 is a wasteful number, since it uses less digits than its factorization.

1100320220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157997 (or 157995 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1100320220 is about 33171.0750504110. The cubic root of 1100320220 is about 1032.3802744466.

Adding to 1100320220 its reverse (220230011), we get a palindrome (1320550231).

The spelling of 1100320220 in words is "one billion, one hundred million, three hundred twenty thousand, two hundred twenty".