1000223120 has 120 divisors (see below), whose sum is σ = 2538962496. Its totient is φ = 366273024.

The previous prime is 1000223089. The next prime is 1000223141. The reversal of 1000223120 is 213220001.

It is a happy number.

1000223120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2257619 + ... + 2258061.

Almost surely, 2^1000223120 is an apocalyptic number.

1000223120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1000223120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1269481248).

1000223120 is an abundant number, since it is smaller than the sum of its proper divisors (1538739376).

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

1000223120 is a wasteful number, since it uses less digits than its factorization.

1000223120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649 (or 630 counting only the distinct ones).

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

The square root of 1000223120 is about 31626.3042418807. The cubic root of 1000223120 is about 1000.0743678026.

Adding to 1000223120 its reverse (213220001), we get a palindrome (1213443121).

The spelling of 1000223120 in words is "one billion, two hundred twenty-three thousand, one hundred twenty".