1120227720 has 64 divisors (see below), whose sum is σ = 3367872000. Its totient is φ = 298088448.

The previous prime is 1120227697. The next prime is 1120227721. The reversal of 1120227720 is 277220211.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1120227721) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 47736 + ... + 67224.

It is an arithmetic number, because the mean of its divisors is an integer number (52623000).

Almost surely, 2^1120227720 is an apocalyptic number.

1120227720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120227720 is an abundant number, since it is smaller than the sum of its proper divisors (2247644280).

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

1120227720 is a wasteful number, since it uses less digits than its factorization.

1120227720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19982 (or 19978 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 1120227720 is about 33469.8031066811. The cubic root of 1120227720 is about 1038.5691986219.

Adding to 1120227720 its reverse (277220211), we get a palindrome (1397447931).

The spelling of 1120227720 in words is "one billion, one hundred twenty million, two hundred twenty-seven thousand, seven hundred twenty".